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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MaximumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Maximum [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MaximumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Maximum [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MinimumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Minimum [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MinimumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Minimum [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RangeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statistical Measurement [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RangeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statistical Measurement [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Cash_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Cash_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentIssuedPrincipal_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Aggregate principal amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentIssuedPrincipal_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Issued, Principal</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Net losses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net loss</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Net loss attributable to common stockholders</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net loss</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Income (Loss) Attributable to Parent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountingPoliciesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Summary of Significant Accounting Policies [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NumberOfReportableSegments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of reportable segments</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NumberOfReportableSegments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number of Reportable Segments</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Accumulated losses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accumulated deficit</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Retained Earnings (Accumulated Deficit)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Key Financial Information Regarding the Operating Single Segment [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CostOfRevenue_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel">-Cost of revenues</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CostOfRevenue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cost of revenues</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CostOfRevenue_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Cost of revenues</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CostOfRevenue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cost of Revenue</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SellingAndMarketingExpense_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel">-Selling and marketing expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SellingAndMarketingExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Selling and marketing expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SellingAndMarketingExpense_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Selling and marketing expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SellingAndMarketingExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Selling and Marketing Expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherExpenses_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel">-Other expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherExpenses_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Other expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromSubsidiariesBeforeTax_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Segment Loss Before Income Tax Expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromSubsidiariesBeforeTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income (Loss) from Subsidiaries, before Tax</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property, Plant, and Equipment [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Lived Asset, Class [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FurnitureAndFixturesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Furniture and fixtures [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FurnitureAndFixturesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Furniture and Fixtures [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Property and Equipment, Net [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Less: Accumulated depreciation</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property, Plant, and Equipment, Accumulated Depreciation, Depletion, and Amortization</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherCommitment_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Commitment amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherCommitment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Commitment, Total</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainsLossesOnExtinguishmentOfDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">-Loss on debt extinguishment</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainsLossesOnExtinguishmentOfDebt_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Loss on debt extinguishment</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainsLossesOnExtinguishmentOfDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Loss on debt extinguishment</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainsLossesOnExtinguishmentOfDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Gain (Loss) on Extinguishment of Debt, Total</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingCodmProfitLossMeasureHowUsedDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">CODM description</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingCodmProfitLossMeasureHowUsedDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segment Reporting, CODM, Profit (Loss) Measure, How Used, Description</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NumberOfOperatingSegments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of operating segments</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NumberOfOperatingSegments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number of Operating Segments</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Revenues_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Revenue</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Revenues_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Net Sales</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Revenues_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenues</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel">-General and administrative expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">General and administrative expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">General and administrative expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">General and Administrative Expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ResearchAndDevelopmentExpense_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel">-Research and development expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ResearchAndDevelopmentExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Research and development expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ResearchAndDevelopmentExpense_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Research and development expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ResearchAndDevelopmentExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Research and Development Expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">-Other income</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other income</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Income</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIncomeInvestmentExpense_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel">-Financial expense, net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIncomeInvestmentExpense_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Financial expense, net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIncomeInvestmentExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Income, Investment Expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Loss Before Income Tax Expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Loss before income tax expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ScheduleOfPropertyAndEquipmentNetAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Property And Equipment Net Abstract</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Lived Asset, Class [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VehiclesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Rental vehicles [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VehiclesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Vehicles [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeaseholdsAndLeaseholdImprovementsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Leasehold improvements [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeaseholdsAndLeaseholdImprovementsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Leaseholds and Leasehold Improvements [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentGross_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Property and equipment, gross</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentGross_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property, Plant, and Equipment, before Accumulated Depreciation, Depletion, and Amortization</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Total property and equipment</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Property and equipment</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Name [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_StatementOfIncomeLocationsBalanceAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement Of Income Locations Balance [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_StatementOfIncomeLocationsBalanceDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement Of Income Locations Balance [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_CostOfRevenueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cost of revenues [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_CostOfRevenueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cost of Revenue [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_GeneralAndAdministrativeExpensesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">General and administrative expenses [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_GeneralAndAdministrativeExpensesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">General and Administrative Expenses [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_MaturityDomainDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">MaturityDomain [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TimeDeposits_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Total</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TimeDeposits_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">- Time deposit</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TimeDeposits_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Time Deposits</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ScheduleOfOtherCurrentAssetsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Other Current Assets Abstract</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByAssetClassAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset Class [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_DeferredFinancingCostsRelatedToUndrawnDebtFacilitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred Financing Costs Related to Undrawn Debt Facilities [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_DeferredFinancingCostsRelatedToUndrawnDebtFacilitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Deferred financing costs related to undrawn debt facilities [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_DeferredFinancingCostsRelatedToUndrawnDebtFacilitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Financing Costs Related To Undrawn Debt Facilities Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_OtherMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_OtherMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_OtherMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Represents the member information pertaining to other.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherAssetsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other current assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherAssetsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Assets, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ScheduleOfOtherNonCurrentAssetsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Other Non Current Assets Abstract</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredFinanceCostsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Opening</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredFinanceCostsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Ending balance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredFinanceCostsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Issuance Costs, Net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ReclassificationToDebtUponBorrowings_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Reclassification to debt upon borrowings</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ReclassificationToDebtUponBorrowings_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Reclassification To Debt Upon Borrowings</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ReclassificationToDebtUponBorrowings_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Represent the amount of reclassification to debt upon borrowings.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ScheduleOfRevenueBasedOnOperationsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Revenue Based On Operations Abstract</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ProductOrServiceAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Product and Service [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_SubscriptionPackageRevenueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Subscription package revenue [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_SubscriptionPackageRevenueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subscription Package Revenue Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ReservationRevenueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Reservation revenue [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ReservationRevenueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Reservation Revenue Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ReservationRevenueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Represents the member information pertaining to reservation revenues.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_SalesRefundsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Sales refunds [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_SalesRefundsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sales Refunds Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CostOfGoodsAndServicesSold_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gross Sales</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CostOfGoodsAndServicesSold_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cost of Product and Service Sold</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ConvertibleDebtConvertedIntoShares_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Converted into shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ConvertibleDebtConvertedIntoShares_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Convertible Debt Converted Into Shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ConvertibleDebtConvertedIntoShares_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Converted into shares.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ConvertibleDebtEmbeddedDerivative_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Embedded derivative</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ConvertibleDebtEmbeddedDerivative_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Convertible Debt Embedded Derivative</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ConvertibleDebtEmbeddedDerivative_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Embedded derivative.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ScheduleOfCostOfRevenueAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Cost Of Revenue Abstract</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_PersonnelExpensesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Personnel expenses [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_PersonnelExpensesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Personnel Expenses Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_PersonnelExpensesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Represents the information pertaining to personnel expenses.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_DepreciationAndAmortizationExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Depreciation and amortization expense [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_DepreciationAndAmortizationExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Depreciation And Amortization Expense Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_DepreciationAndAmortizationExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Represents the information pertaining to depreciation and amortization expense.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_CommissionExpensesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Commission expenses [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_CommissionExpensesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commission Expenses Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_CommissionExpensesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Represents the information pertaining to commission expenses.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_OperatingExpensesScheduleofGeneralandAdministrativeExpensesDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Expenses - Schedule of General and Administrative Expenses (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ProductsAndServicesDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Product and Service [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ConsultingAndLegalExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Consulting and legal expenses [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ConsultingAndLegalExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Consulting And Legal Expense Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ConsultingAndLegalExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Represents the information pertaining to consulting &amp; legal expense.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_OfficeRentExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Office expenses [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_OfficeRentExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Office Rent Expense Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_TravellingExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Travelling expenses [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_TravellingExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Travelling Expense Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_TravellingExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Represents the information pertaining to travelling expense.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerDurationDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contract with Customer, Duration [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_CorporateIncomeTaxRate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Corporate income tax</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_CorporateIncomeTaxRate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Corporate Income Tax Rate</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_CorporateIncomeTaxRate_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Represent the percentage of corporate income tax rate.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingExpensesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Expenses [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingExpensesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating expenses:</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Federal income tax rate</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Income withholding tax rate</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtLongtermAndShorttermCombinedAmountAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Short-Term and Long-Term Financial Liabilities [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongtermDebtTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Type [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ConvertibleNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Convertible Notes [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ConvertibleNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Convertible Notes Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentInKindPIKNoteMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">PIK Interest [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentInKindPIKNoteMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payment in Kind (PIK) Note [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value by Liability Class [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermDebtLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Short-Term and Long-Term Financial Liabilities [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentInterestRateEffectivePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Rate of interest</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentInterestRateEffectivePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Interest Rate, Effective Percentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AmortizationOfDebtDiscountPremium_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt discount amortized</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AmortizationOfDebtDiscountPremium_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Amortization of Debt Discount (Premium)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtConversionConvertedInstrumentSharesIssued1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Convertible shares (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtConversionConvertedInstrumentSharesIssued1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Conversion, Converted Instrument, Shares Issued</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ResetPrice_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Reset price</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ResetPrice_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Reset Price</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ResetPrice_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The reset price.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_RevenueScheduleofDeferredRevenueMovementDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenue - Schedule of Deferred Revenue Movement (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredLeaseRevenueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred Revenue [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredLeaseRevenueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Lease Revenue [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerLiabilityCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Deferred Revenue Total</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerLiabilityCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred revenue</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerLiabilityCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contract with Customer, Liability, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_FinesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fines [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_FinesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fines Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ScheduleOfOtherExpensesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Other Expenses [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ShortTermandLongTermFinancialLiabilitiesScheduleofCarryingAmountofFinancialLiabilitiesDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Short-Term and Long-Term Financial Liabilities - Schedule of Carrying Amount of Financial Liabilities (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ConvertibleDebtAdditions_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Additions</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ConvertibleDebtAdditions_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Convertible Debt Additions</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ConvertibleDebtAdditions_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Additions.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ConvertibleDebtDiscount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt discount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ConvertibleDebtDiscount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Convertible Debt Discount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ConvertibleDebtDiscount_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Debt discount.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ConvertibleDebtAccruedInterestNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accrued interest, net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ConvertibleDebtAccruedInterestNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Convertible Debt Accrued Interest Net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ConvertibleDebtAccruedInterestNet_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Accrued interest, net.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RegulatoryLiabilityDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Regulatory Liability [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ExtinguishmentOfConvertibleNotes_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Extinguishment of convertible notes</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ExtinguishmentOfConvertibleNotes_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Extinguishment of Convertible Notes</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ExtinguishmentOfConvertibleNotes_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of extinguishment of convertible notes.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_RecognitionOfAmendedConvertibleNotes_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Recognition of amended convertible notes</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_RecognitionOfAmendedConvertibleNotes_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Recognition Of Amended Convertible Notes</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_RecognitionOfAmendedConvertibleNotes_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of recognition of amended convertible notes.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ReclassificationOfEquityclassifiedConversionFeatureAndFairValueAdjustmentOnNewConvertibleNotes_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Equity-classified conversion feature amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ReclassificationOfEquityclassifiedConversionFeatureAndFairValueAdjustmentOnNewConvertibleNotes_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Reclassification of equity-classified conversion feature and fair value adjustment on new convertible notes</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ReclassificationOfEquityclassifiedConversionFeatureAndFairValueAdjustmentOnNewConvertibleNotes_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of reclassification of equity-classified conversion feature and fair value adjustment on new convertible notes.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ConvertibleSeniorSecuredNoteMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Convertible Senior Secured Note [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentConvertibleConversionPrice1_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Conversion price</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentConvertibleConversionPrice1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Conversion exercise price</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentConvertibleConversionPrice1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Convertible, Conversion Price</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentAnnualPrincipalPayment_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Principal amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentAnnualPrincipalPayment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Annual Principal Payment</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TypeOfArrangementAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Collaborative Arrangement and Arrangement Other than Collaborative [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ArrangementsAndNonarrangementTransactionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Collaborative Arrangement and Arrangement Other than Collaborative [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_SubscriptionAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subscription Agreement [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtConversionConvertedInstrumentAmount1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt conversion converted instrument amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtConversionConvertedInstrumentAmount1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Conversion, Converted Instrument, Amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_AmountNotQualifiedForEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amount not qualified</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_AmountNotQualifiedForEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Amount Not Qualified for Equity</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_AmountNotQualifiedForEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount not qualified.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_PercentageOfFairValueOfConversionFeatureIncreased_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of fair value of the conversion feature increased</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_PercentageOfFairValueOfConversionFeatureIncreased_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage of Fair Value of Conversion Feature Increased</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_PercentageOfFairValueOfConversionFeatureIncreased_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of fair value of the conversion feature increased.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_SocialMediaExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Social media expense [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_SocialMediaExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Social Media Expense Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_SocialMediaExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Represents the information pertaining to social media expense.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_MeasurementInputExpectedVolatilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Expected volatility [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_MeasurementInputExpectedVolatilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Measurement input Expected volatility [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IntangibleAssetsNetExcludingGoodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Intangible assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IntangibleAssetsNetExcludingGoodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Intangible Asset, Excluding Goodwill, after Accumulated Amortization</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total non-current assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets, Noncurrent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesCurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Current liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesCurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities, Current [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsPayableCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounts payable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsPayableCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounts Payable, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiabilityNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating lease liabilities, net of current portion</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiabilityNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Liability, Noncurrent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total non-current liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities, Noncurrent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total current liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Long-term financial liabilities, net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Non-current financial liabilities, net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Excluding Current Maturities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accumulated other comprehensive loss</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accumulated Other Comprehensive Income (Loss), Net of Tax</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total stockholders&#8217; equity</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Balance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Balance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity, Attributable to Parent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CostsAndExpenses_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel">Total operating expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CostsAndExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Costs and Expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net loss per share</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Loss Per Share [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Loss per share:</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted average shares used to compute diluted net loss per share (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Diluted weighted-average shares outstanding</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Weighted Average Number of Shares Outstanding, Diluted</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net loss per common share &#8211; diluted (in Dollars per share)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Diluted loss per share</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share, Diluted</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ComprehensiveIncomeNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total comprehensive loss</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ComprehensiveIncomeNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Comprehensive Income (Loss), Net of Tax, Attributable to Parent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounts payable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Accounts Payable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accrued expenses, employee benefit and other current liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Accrued Liabilities and Other Operating Liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash flow from investing activities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LettersOfCreditOutstandingAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Outstanding letters of guarantee</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LettersOfCreditOutstandingAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Letters of Credit Outstanding, Amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">B. Net cash used in investing activities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Investing Activity, Including Discontinued Operation</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromConvertibleDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from issuance of convertible notes</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromConvertibleDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Convertible Debt</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromStockOptionsExercised_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from exercise of employee share options</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromStockOptionsExercised_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Stock Options Exercised</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">D. Increase/(Decrease) in cash and cash equivalents (A+B+C)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stock options</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCentralIndexKey_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Central Index Key</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CoverAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cover [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockRepurchasedDuringPeriodValue_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel">Repurchase of shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockRepurchasedDuringPeriodValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Repurchased During Period, Value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockRepurchasedDuringPeriodShares_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Repurchase of shares (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockRepurchasedDuringPeriodShares_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Repurchased During Period, Shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ExerciseOfIncentiveSharesIssuedToConvertibleNoteHolders_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Exercise of incentive shares issued to convertible note holders</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ExerciseOfIncentiveSharesIssuedToConvertibleNoteHolders_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of exercise of incentive shares issued to convertible note holders.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ExerciseOfIncentiveSharesIssuedToConvertibleNoteHoldersShares_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Exercise of incentive shares issued to convertible note holders (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ExerciseOfIncentiveSharesIssuedToConvertibleNoteHoldersShares_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Exercise of incentive shares issued to convertible note holders, Shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ExerciseOfIncentiveSharesIssuedToConvertibleNoteHoldersShares_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Number of exercise of incentive shares issued to convertible note holders, shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueConversionOfUnits_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Conversion of convertible notes into shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueConversionOfUnits_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Value, Conversion of Units</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Conversion of convertible notes into shares (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Shares, Conversion of Units</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_PurchaseOfTreasuryShares_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Purchase of treasury shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_PurchaseOfTreasuryShares_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Purchase of Treasury Shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_PurchaseOfTreasuryShares_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of purchase of treasury shares.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementOfStockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Stockholders' Equity [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementEquityComponentsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Components [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockCommonMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Treasury shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockCommonMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Treasury Stock, Common [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">PROPERTY AND EQUIPMENT</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property, Plant, and Equipment [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash and Cash Equivalents [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherAssetsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">OTHER ASSETS</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueFromContractWithCustomerAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenue [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherOperatingIncomeAndExpenseTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">OPERATING EXPENSES</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2026</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Cash and cash equivalents at ending of the period (D+E)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">E. Cash and cash equivalents at beginning of the period</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestPaidNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Paid, Excluding Capitalized Interest, Operating Activity</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Description of Business [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">BASIS OF PRESENTATION AND GOING CONCERN</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Description and Basis of Presentation [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Diluted Net Loss Per Share</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFiscalYearFocus_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Fiscal Year Focus</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFiscalYearFocus_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Fiscal Year Focus</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityRegistrantName_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Registrant Name</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityRegistrantName_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Registrant Name</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentPeriodEndDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Period End Date</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentPeriodEndDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Period End Date</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ScheduleOfCalculationOfBasicAndDilutedNetLossPerShareAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Calculation of Basic and Diluted Net Loss Per Share [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Basic weighted-average shares outstanding</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted average shares used to compute basic net loss per share (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Weighted Average Number of Shares Outstanding, Basic</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ScheduleOfDilutiveOutstandingSecuritiesExcludedFromComputationOfDilutedNetLossPerShareAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Dilutive Outstanding Securities Excluded From Computation Of Diluted Net Loss Per Share Abstract</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Antidilutive Securities [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Diluted Net Loss Per Share [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Dilutive Outstanding Securities Excluded From Computation of Diluted Net Loss Per Share [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentType_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Type</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentType_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Type</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityFileNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity File Number</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityFileNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity File Number</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_AmendmentFlag_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amendment Flag</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_AmendmentFlag_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Amendment Flag</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFiscalPeriodFocus_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Fiscal Period Focus</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementOfFinancialPositionAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Financial Position [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsCurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Current assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsCurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets, Current [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsReceivableNetCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounts receivable, net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsReceivableNetCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounts Receivable, after Allowance for Credit Loss, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_SharePremiumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Share premium</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_SharePremiumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share Premium Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accumulated deficit</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Retained Earnings [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Balance (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Balance (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Shares, Outstanding</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Exercise of share-based awards</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Value, Stock Options Exercised</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueEmployeeBenefitPlan_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Exercise of shares issued to employee</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueEmployeeBenefitPlan_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Value, Employee Benefit Plan</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockCommonShares_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Balance (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockCommonShares_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Balance (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockCommonShares_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Treasury Stock, Common, Shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementOfCashFlowsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Cash Flows [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepreciationDepletionAndAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Depreciation and amortization</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepreciationDepletionAndAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Depreciation, Depletion and Amortization</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeExpenseNet_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Interest expense, net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeExpenseNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Income (Expense), Operating</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Changes in operating assets and liabilities:</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInInventories_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Inventories</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInInventories_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Inventories</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_FairValueOfAmendedConvertibleNotesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair value of amended convertible notes issued</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_FairValueOfAmendedConvertibleNotesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of fair value of amended convertible notes issued.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValueAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash and Cash Equivalent [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Share repurchase</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueOptionQuantitativeDisclosuresTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Significant Inputs</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueOptionQuantitativeDisclosuresTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Option, Disclosures [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Fair Value Measurement</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ScheduleOfFairValueMeasurementAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Fair Value Measurement [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueOptionQuantitativeDisclosuresTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Option, Disclosures [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Measurement Input Type [Axis]</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfPrincipalTransactionsRevenueTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Revenue from Operations</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Wallet Balances Movement</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_TreasuryStockRepurchasedShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Repurchased share</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_TreasuryStockRepurchasedShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Treasury Stock Repurchased Share</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_TreasuryStockRepurchasedShare_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The represent of treasury stock repurchased share.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AllocatedShareBasedCompensationExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Stock-based compensation expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AllocatedShareBasedCompensationExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Payment Arrangement, Expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_RevenueScheduleofDeferredRevenueConsistsofPrepaidCouponsandWalletDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenue - Schedule of Deferred Revenue Consists of Prepaid Coupons and Wallet (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherAssetsNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other non-current assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherAssetsNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Assets, Noncurrent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ScheduleOfDeferredFinancingCostMovementAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Deferred Financing Cost Movement [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_PropertyandEquipmentScheduleofDepreciationExpensesDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property and Equipment - Schedule of Depreciation Expenses (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_CondensedStatementOfIncomeCaptionsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Depreciation Expenses [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ScheduleOfDepreciationExpensesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Depreciation Expenses Abstract</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Depreciation_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total depreciation</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Depreciation_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Depreciation</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash and cash equivalents</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash and Cash Equivalent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MaturitiesOfTimeDepositsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Time Deposit Maturity Dates and Interest Rates [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MaturitiesOfTimeDepositsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Maturities of Time Deposits [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_MaturityTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Maturity Two [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_MaturityTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Maturity Two Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_MaturityTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Maturity date two on deposits.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_MaturityFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Maturity Four [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_MaturityFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Maturity Four Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentMaturityDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Maturity</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentMaturityDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Maturity Date</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_CurrencyAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Currency [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_MaturityAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Maturity [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_MaturityAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Maturity Axis</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_MaturityAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Information by maturity dates on deposits.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DueFromBanks_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash at banks</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DueFromBanks_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Due from Banks</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DemandDepositAccounts_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">- Demand deposit</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DemandDepositAccounts_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Demand Deposit Accounts</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_CashandCashEquivalentsScheduleofTimeDepositMaturityDatesandInterestRatesDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash and Cash Equivalents - Schedule of Time Deposit Maturity Dates and Interest Rates (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_MaturityOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Maturity One [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_MaturityOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Maturity One Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_MaturityThreeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Maturity Three [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_MaturityThreeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Maturity Three Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_MaturityThreeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Maturity date three on deposits.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepositLiabilityLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Time Deposit Maturity Dates and Interest Rates [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentInterestRate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest rate %</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentInterestRate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Interest Rate</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="currency_AllCurrenciesDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">All Currencies [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="currency_TRY_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">TL [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="currency_TRY_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Turkey, New Lira</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_OtherAssetsScheduleofOtherCurrentAssetsDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Assets - Schedule of Other Current Assets (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset Class [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_PrepaymentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Prepayments [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_PrepaymentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Prepayments Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_OtherAssetsScheduleofOtherNonCurrentAssetsDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Assets - Schedule of Other Non-Current Assets (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtRelatedCommitmentFeesAndDebtIssuanceCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Costs incurred related to committed debt facilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtRelatedCommitmentFeesAndDebtIssuanceCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Related Commitment Fees and Debt Issuance Costs</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinanceLeaseInterestExpense_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Financing expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinanceLeaseInterestExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Finance Lease, Interest Expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrincipleTransactionRevenueTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Principal Transaction Revenue [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_RentalRevenueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Rental revenue [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_RentalRevenueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Rental Revenue Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_SalesDiscountMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Sales discount	[Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_SalesDiscountMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sales Discount Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrincipleTransactionRevenueLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Revenue Based on Operations [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ScheduleOfDeferredRevenueConsistsOfPrepaidCouponsAndWalletAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Deferred Revenue Consists Of Prepaid Coupons And Wallet Abstract</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ScheduleOfOtherCurrentAssetsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Other Current Assets [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ScheduleOfOtherCurrentAssetsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Other Current Assets [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ScheduleOfOtherNonCurrentAssetsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Other Non-Current Assets [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ScheduleOfOtherNonCurrentAssetsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Other Non Current Assets [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ShortTermandLongTermFinancialLiabilitiesDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Short-Term and Long-Term Financial Liabilities (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongtermDebtTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Type [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_CashInterestMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash Interest [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_CashInterestMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Interest Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByLiabilityClassAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liability Class [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Financial Liabilities [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Financial Instruments, Liabilities [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentMaturityDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Maturity date</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentMaturityDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Maturity Date</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_VolumeWeightedAveragePricePeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Volume weighted average price period</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_VolumeWeightedAveragePricePeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Volume Weighted Average Price Period</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_VolumeWeightedAveragePricePeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Terms of volume weighted average price period.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_DeferredRevenueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred Revenue [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_DeferredRevenueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Revenue Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_OperatingExpensesScheduleofSellingandMarketingExpensesDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Expenses - Schedule of Selling and Marketing Expenses (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_AdvertisingConsultingExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Advertising consulting expense [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_AdvertisingConsultingExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Advertising Consulting Expense Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_AdvertisingConsultingExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Represents the information pertaining to advertising consulting expense.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ScheduleOfOtherExpensesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Other Expenses Abstract</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ConvertibleNotesLongTermOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Convertible notes, long term [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ConvertibleNotesLongTermOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Convertible Notes Long Term One Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Current financial liabilities, net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Short-term financial liabilities, net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Current Maturities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConvertibleDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Opening balance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConvertibleDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Ending balance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConvertibleDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Convertible Debt</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_PromotionalOperatingExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Promotion expense [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_PromotionalOperatingExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Promotional Operating Expense Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_PromotionalOperatingExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Represents the information pertaining to promotional operating expense.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_OtherExpensesScheduleofOtherExpensesDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Expenses - Schedule of Other Expenses (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredRevenueArrangementLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Deferred Revenue Movement [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ContractWithCustomerLiabilityAdditions_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred revenue, additions</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ContractWithCustomerLiabilityAdditions_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contract With Customer Liability Additions</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ContractWithCustomerLiabilityAdditions_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of contract with customer liability additions for transactions arising during the current reporting period.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ContractWithCustomerLiabilityFXRateAdjustment_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Deferred revenue, FX rate Adj</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ContractWithCustomerLiabilityFXRateAdjustment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contract With Customer Liability FXRate Adjustment</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ContractWithCustomerLiabilityFXRateAdjustment_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of Contract with Customer, Liability FX rate adjustment.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensation_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Share-based compensation expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensation_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Payment Arrangement, Noncash Expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Taxes [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total financial liabilities, net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtByMaturityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Maturity Profile of Financial Liabilities [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentUnamortizedDiscount_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Less: unamortized debt discount, net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentUnamortizedDiscount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Unamortized Discount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingCostsAndExpensesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Operating Expenses [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_OperatingExpensesScheduleofCostofRevenueDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Expenses - Schedule of Cost of Revenue (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_DataCostExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Data cost expenses [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_DataCostExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Data Cost Expense Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_DataCostExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Represents the information pertaining to data cost expense.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_OperatingLeaseExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating lease expense [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_OperatingLeaseExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease Expense Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_OperatingLeaseExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Represents the information pertaining to operating lease expense.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_RentalVehicleMaintenanceAndRepairExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Rental vehicle maintenance and repair expense [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_RentalVehicleMaintenanceAndRepairExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Rental Vehicle Maintenance And Repair Expense Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_RentalVehicleMaintenanceAndRepairExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Represents the information pertaining to rental vehicle maintenance and repair expense.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ScheduleOfGeneralAndAdministrativeExpensesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of General And Administrative Expenses Abstract</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ScheduleOfSellingAndMarketingExpensesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Selling And Marketing Expenses Abstract</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Deferred revenue, beginning balance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Deferred revenue, ending balance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contract with Customer, Liability</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ContractWithCustomerLiabilityRevenueRecognizedExcludingOpeningBalance_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Deferred revenue, Revenue</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ContractWithCustomerLiabilityRevenueRecognizedExcludingOpeningBalance_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contract With Customer Liability Revenue Recognized Excluding Opening Balance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ContractWithCustomerLiabilityRevenueRecognizedExcludingOpeningBalance_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due excluding opening balance.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_WalletMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Wallet [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_WalletMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Wallet Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_WalletMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Represents the member information pertaining to wallet.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ScheduleOfDeferredRevenueMovementAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Deferred Revenue Movement Abstract</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RegulatoryLiabilityAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Regulatory Liability [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerDurationAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contract with Customer, Duration [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ScheduleOfDeferredRevenueConsistsOfPrepaidCouponsAndWalletLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Deferred Revenue Consists of Prepaid Coupons and Wallet [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_OtherOperatingExpensesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_OtherOperatingExpensesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Operating Expenses Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherOperatingIncomeExpenseNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherOperatingIncomeExpenseNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Operating Income (Expense), Net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ScheduleOfCarryingAmountOfFinancialLiabilitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Carrying Amount Of Financial Liabilities Abstract</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ConvertibleNotesLongTermMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Convertible notes, long term [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ConvertibleNotesLongTermMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Convertible Notes Long Term Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Carrying Amount of Financial Liabilities [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentInterestRateStatedPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Contractual interest rate %</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentInterestRateStatedPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Interest Rate, Stated Percentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ScheduleOfTheCarryingAmountOfConvertibleNotesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of the Carrying Amount of Convertible Notes [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_CostOfRevenuesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cost of Revenue [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_CostOfRevenuesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cost of Revenues [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ScheduleOfGeneralAndAdministrativeExpensesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of General and Administrative Expenses [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ScheduleOfGeneralAndAdministrativeExpensesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of General and Administrative Expenses [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ScheduleOfSellingAndMarketingExpensesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Selling and Marketing Expenses [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ScheduleOfSellingAndMarketingExpensesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Selling and Marketing Expenses [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueDisclosuresAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Significant Inputs [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentMeasurementInput_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Measurement Input</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputSharePriceMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Share price [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputSharePriceMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Measurement Input, Share Price [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputRiskFreeInterestRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Risk-free interest rate [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputRiskFreeInterestRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Measurement Input, Risk Free Interest Rate [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputDiscountRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt discount rate / credit risk adjustment [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputDiscountRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Measurement Input, Discount Rate [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_MeasurementInputConversionPriceBeforeAmendmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Conversion price before amendment [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_MeasurementInputConversionPriceBeforeAmendmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Measurement Input Conversion Price Before Amendment [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_MeasurementInputConversionPriceAfterAmendmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Conversion price after amendment [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_MeasurementInputConversionPriceAfterAmendmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Measurement Input Conversion Price After Amendment [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Significant Inputs [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Measurement Inputs and Valuation Techniques [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ConversionOfConvertibleNotesIntoShares_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Conversion of convertible notes into shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ConversionOfConvertibleNotesIntoShares_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of conversion of convertible notes into shares.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_CarryingAmountOfConvertibleNotesExtinguished_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Carrying amount of convertible notes extinguished</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_CarryingAmountOfConvertibleNotesExtinguished_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of carrying amount of convertible notes extinguished.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total liabilities and stockholders&#8217; equity</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities and Equity</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Statement [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Loss from operations</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Income (Loss)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Income tax expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Tax Expense (Benefit)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net loss attributable to stockholders</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Income (Loss) Available to Common Stockholders, Basic</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net loss per common share &#8211; basic (in Dollars per share)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Basic loss per share</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share, Basic</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Other comprehensive loss</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">CASH AND CASH EQUIVALENTS</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash and Cash Equivalents Disclosure [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueFromContractWithCustomerTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">REVENUE</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueFromContractWithCustomerTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenue from Contract with Customer [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_OtherExpensesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">OTHER EXPENSES</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_OtherExpensesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Expenses Text Block</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_OtherExpensesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The entire disclosure of other expenses.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">SHORT-TERM AND LONG-TERM FINANCIAL LIABILITIES</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Disclosure [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commitments and Contingencies [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">LOSS PER SHARE</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Events [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Recently issued accounting standards</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stockholders&#8217; equity</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity, Attributable to Parent [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockValue_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Treasury shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Treasury Stock, Value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Property and Equipment, Net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property, Plant, and Equipment [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfCashAndCashEquivalentsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Cash and Cash Equivalents</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfCashAndCashEquivalentsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Cash and Cash Equivalents [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfOtherCurrentAssetsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Other Current Assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfOtherCurrentAssetsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Other Current Assets [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ScheduleOfDeferredFinancingCostMovementTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Deferred Financing Cost Movement</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ScheduleOfDeferredFinancingCostMovementTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Deferred Financing Cost Movement Table Text Block</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ScheduleOfDeferredFinancingCostMovementTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Tabular disclosure of deferred financing cost movement.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReconciliationOfRevenueFromSegmentsToConsolidatedTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Key Financial Information Regarding the Operating Single Segment</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReconciliationOfRevenueFromSegmentsToConsolidatedTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segment Reporting, Reconciliation of Revenue by Segment to Consolidated [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ScheduleOfOperatingExpensesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Operating Expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ScheduleOfOperatingExpensesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Operating Expenses Table Text Block</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ScheduleOfOperatingExpensesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Tabular disclosure of operating expenses.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ScheduleOfGeneralAndAdministrativeExpensesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of General and Administrative Expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ScheduleOfGeneralAndAdministrativeExpensesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of General And Administrative Expenses Table Text Block</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ScheduleOfGeneralAndAdministrativeExpensesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Tabular disclosure of general and administrative expenses.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfOtherOperatingCostAndExpenseByComponentTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Other Expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfOtherOperatingCostAndExpenseByComponentTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Other Operating Cost and Expense, by Component [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasicAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Numerator:</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasicAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share, Basic [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDilutedAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Denominator:</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDilutedAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share, Diluted [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Antidilutive Security, Excluded EPS Calculation [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmployeeStockOptionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stock options [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmployeeStockOptionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Payment Arrangement, Option [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CurrentFiscalYearEndDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Current Fiscal Year End Date</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CurrentFiscalYearEndDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Current Fiscal Year End Date</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AntidilutiveSecuritiesNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Antidilutive Securities, Name [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InventoryNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Inventories</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InventoryNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Inventory, Net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total current assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accumulated other comprehensive loss</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">AOCI Attributable to Parent [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityComponentDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Component [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConvertibleDebtTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of the Carrying Amount of Convertible Notes</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConvertibleDebtTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Convertible Debt [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ScheduleOfRevenueFromPerformanceObligationTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Deferred Revenue Consists of Prepaid Coupons and Wallet</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ScheduleOfRevenueFromPerformanceObligationTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Revenue From Performance Obligation Table Text Block</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ScheduleOfRevenueFromPerformanceObligationTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Tabular disclosure of revenue from performance obligation.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Maturity Profile of Financial Liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Maturities of Long-Term Debt [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ConversionFeatureBeforeAmendmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Conversion Feature Before Amendment [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ConversionFeatureBeforeAmendmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Conversion feature before Amendment [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ConversionFeatureAfterAmendmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Conversion Feature After Amendment [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_AmendedConvertibleNotesRecognizedAtFairValueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Amended Convertible Notes Recognized At Fair Value [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_ScheduleOfFairValueMeasurementLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Fair Value Measurement [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByFairValueHierarchyLevelAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Hierarchy and NAV [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementsFairValueHierarchyDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Hierarchy and NAV [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel3Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Level 3 [member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel3Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Inputs, Level 3 [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementsNonrecurringAlternativeMeasurementDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Measurement date</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementsNonrecurringAlternativeMeasurementDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Measurements, Nonrecurring, Alternative Measurement Date</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_FairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_FairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of fair value.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsNoncurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Non-current assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsNoncurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets, Noncurrent [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseRightOfUseAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating lease right of use assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseRightOfUseAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Right-of-Use Asset</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Assets_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Assets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiabilityCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating lease liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiabilityCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Liability, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherLiabilitiesNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Employee benefit liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherLiabilitiesNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Liabilities, Noncurrent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Liabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Liabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedLiabilitiesAndOtherLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accrued expenses and other current liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedLiabilitiesAndOtherLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accrued Liabilities and Other Liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesNoncurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Non-current liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesNoncurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities, Noncurrent [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_SharePremium_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Share premium</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_SharePremium_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share Premium</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="mrt_SharePremium_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of share premium.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Compensation of share-based awards to employees</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Exercise of share-based awards (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesEmployeeBenefitPlan_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Exercise of shares issued to employee (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesEmployeeBenefitPlan_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Shares, Employee Benefit Plan</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash flow from operating activities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Adjustments to reconcile net loss to net cash used in operating activities:</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Foreign exchange gain/(loss), net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Gain (Loss), Foreign Currency Transaction, before Tax</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherNoncashIncomeExpense_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Other non-cash</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherNoncashIncomeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Noncash Income (Expense)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccountsReceivable_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Accounts receivable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccountsReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Accounts Receivable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInOtherCurrentAssets_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Other current assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInOtherCurrentAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Other Current Assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInContractWithCustomerLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred revenue</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">A. Net cash used in operating activities</link:label>
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