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  <xs:element id="fac_DebtInstrumentConvertibleTermsOfConversionDomain" abstract="true" name="DebtInstrumentConvertibleTermsOfConversionDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="fac_DebtConversionTermsOneMember" abstract="true" name="DebtConversionTermsOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="fac_DebtConversionTermsTwoMember" abstract="true" name="DebtConversionTermsTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="fac_StellantisMember" abstract="true" name="StellantisMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="fac_MercedesBenzMember" abstract="true" name="MercedesBenzMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="fac_GatemoreCapitalManagementMember" abstract="true" name="GatemoreCapitalManagementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="fac_DebtInstrumentConvertibleThresholdProceedsFromConvertibleDebt" abstract="false" name="DebtInstrumentConvertibleThresholdProceedsFromConvertibleDebt" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="fac_DebtConversionConvertedInstrumentSharesIssuedPriorToExchangeRatio" abstract="false" name="DebtConversionConvertedInstrumentSharesIssuedPriorToExchangeRatio" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="fac_CollaborativeArrangementRightsAndObligationsMaximumConsideration" abstract="false" name="CollaborativeArrangementRightsAndObligationsMaximumConsideration" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="fac_AdvisoryAgreementTerm" abstract="false" name="AdvisoryAgreementTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="fac_SaleOfStockNumberOfSharesIssuableInTransaction" abstract="false" name="SaleOfStockNumberOfSharesIssuableInTransaction" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="fac_TemporaryEquityConversionBasis" abstract="false" name="TemporaryEquityConversionBasis" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="fac_CommonStockAndPreferredStockSharesAuthorized" abstract="false" name="CommonStockAndPreferredStockSharesAuthorized" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="fac_CommonStockVotingRightsNumberOfVotes" abstract="false" name="CommonStockVotingRightsNumberOfVotes" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="fac_ClassOfWarrantOrRightRedemptionExercisePriceOfWarrantsOrRightsThreshold" abstract="false" name="ClassOfWarrantOrRightRedemptionExercisePriceOfWarrantsOrRightsThreshold" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="fac_ClassOfWarrantOrRightRedemptionPricePerShare" abstract="false" name="ClassOfWarrantOrRightRedemptionPricePerShare" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="fac_ClassOfWarrantOrRightRedemptionPeriod" abstract="false" name="ClassOfWarrantOrRightRedemptionPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="fac_ClassOfWarrantOrRightRedemptionThresholdConsecutiveTradingDays" abstract="false" name="ClassOfWarrantOrRightRedemptionThresholdConsecutiveTradingDays" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="fac_ClassOfWarrantOrRightRedemptionThresholdTradingDays" abstract="false" name="ClassOfWarrantOrRightRedemptionThresholdTradingDays" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="fac_ClassOfWarrantOrRightRedemptionThresholdVolumeWeightedAveragePriceTradingDays" abstract="false" name="ClassOfWarrantOrRightRedemptionThresholdVolumeWeightedAveragePriceTradingDays" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="fac_ReportableSegmentMember" abstract="true" name="ReportableSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="fac_ReimbursementIncome" abstract="false" name="ReimbursementIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="fac_JosephTaylorMember" abstract="true" name="JosephTaylorMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="fac_CollaborativeArrangementPrepayment" abstract="false" name="CollaborativeArrangementPrepayment" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="fac_JasonDuvaMember" abstract="true" name="JasonDuvaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="fac_SiyuHuangMember" abstract="true" name="SiyuHuangMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="fac_AlexYuMember" abstract="true" name="AlexYuMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
