Exhibit 5.1

Loeb & Loeb LLP   345 Park Avenue New York, NY 10154

Main Fax

212.407.4000 212.407.4990

September 18, 2025

Ladies and Gentlemen:

We have acted as counsel to ECD Automotive Design, Inc., a Delaware corporation (the “Company”), in connection with the Registration Statement on Form S-1 (File Number 333-288692) to which this opinion is filed as an exhibit (the “Registration Statement”), filed with the Securities and Exchange Commission under the Securities Act of 1933, as amended (the “Act”), for the registration for resale by the selling securityholders listed therein (the “Selling Securityholders”), of up to an aggregate of 300,7614,352 shares of common stock, $0.0001 par value per share of the Company (the “Common Stock”), consisting of:

ECD Automotive Design, Inc. Page 2

In addition, the prospectus included in the Registration Statement relates to the resale of up to 6,438 redeemable warrants (the “Private Warrants”) included in the Private Units issued and sold to certain of the Selling Securityholders and up to 6,438 shares of Common Stock underlying the Private Warrants (the “Private Warrant Shares”).

The prospectus also relates to the primary offering of up to 287,500 shares of Common Stock (the “Public Warrant Shares,” and together with the Private Warrant Shares, the “Warrant Shares”) underlying the 287,500 redeemable warrants (the “Public Warrants” and together with the Duncan Warrants and the Private Warrants, the “Warrants”) included in the Private Units issued and sold in a private placement concurrent with the IPO.

In connection with this opinion, we have examined and relied upon the Registration Statement, the EPFA, the Warrants and certain other agreements relating to the issuance of Common Stock to the Selling Securityholders. We have also examined originals or copies, certified or otherwise identified to our satisfaction, of the Company’s second amended and restated certificate of incorporation and second amended and restated bylaws, and such corporate records of the Company and other certificates and documents of officials of the Company, public officials and others as we have deemed appropriate for purposes of this letter. We have assumed the genuineness of all signatures, the authenticity of all documents submitted to us as originals, and the conformity to authentic original documents of all copies submitted to us as conformed and certified or reproduced copies.

Based upon the foregoing and subject to the assumptions, exceptions, qualifications and limitations set forth hereinafter, we are of the opinion that:

a) The Founder Shares, the Private Unit Shares, the Private Rights Shares, the Fee Shares, the Subscription Shares, the Miller Shares, the Hubs Shares, the Cole Shares, the Piggott Shares, the Borden Shares, the Hudson Shares, the Duncan Shares, the Commitment Shares, the Wood Director Shares, the Lavelle Director Shares, the Machinist Director Shares and the Piggott Director Shares have been duly and validly issued and are fully paid and nonassessable;

ECD Automotive Design, Inc. Page 3

b) The ECDA Shares have been duly authorized for issuance and, when issued and paid for in accordance with the terms and conditions of the EPFA, will be validly issued, fully paid and nonassessable;

c) The Private Warrants have been duly authorized, executed and delivered by the Company and constitute valid and legally binding obligations of the Company, enforceable against the Company in accordance with their terms; and

d) The Warrant Shares have been duly authorized for issuance and, when issued and paid for in accordance with the respective terms and conditions of the Warrants, as applicable, will be validly issued, fully paid and nonassessable.

The opinion set forth in paragraph (c) above is subject to the following exceptions, limitations and qualifications: (i) the effect of bankruptcy, insolvency, reorganization, arrangement, moratorium, fraudulent conveyance, fraudulent transfer and other similar laws relating to or affecting the rights of creditors, (ii) the effect of general principles of equity (including, without limitation, concepts of materiality, reasonableness, good faith and fair dealing and the possible unavailability of specific performance, injunctive relief and other equitable remedies), regardless of whether considered in a proceeding at law or in equity, and (iii) the effect of public policy considerations that may limit the rights of the parties to obtain further remedies, and (iv) that we express no opinion regarding provisions relating to choice of law, choice of venue, jurisdiction or waivers of jury trial, or any waiver of any usury defense.

The opinions we express herein are limited to matters involving the Delaware General Corporation Law and the laws of the State of New York.

We hereby consent to the filing of this opinion as an exhibit to the Registration Statement and to the reference made to us under the caption “Legal Matters” in the prospectus constituting part of the Registration Statement. In giving this consent, we do not thereby admit that we are within the category of persons whose consent is required under Section 7 of the Act or the rules and regulations of the Securities and Exchange Commission promulgated thereunder.

Sincerely yours,

/s/ Loeb & Loeb LLP

Loeb & Loeb LLP