Exhibit 5.1


                                  June 21, 2001



Capital Auto Receivables, Inc.
Corporation Trust Center
1209 Orange Street
Wilmington, Delaware 19801


     Re: Enforceability Opinion


     We are issuing  this opinion  letter in our capacity as special  counsel to
Capital Auto  Receivables,  Inc. (the  "Seller") and General  Motors  Acceptance
Corporation ("GMAC") in connection with:

(1)  the issuance of $680,000,000  aggregate principal amount of Class A-2 Asset
     Backed  Notes (the "Class A-2  Notes"),  $385,000,000  aggregate  principal
     amount of Class  A-3 Asset  Backed  Notes  (the  "Class  A-3  Notes"),  and
     $150,643,000  aggregate  principal  amount of Class A-4 Asset  Backed Notes
     (the "Class A-4 Notes" and together  with the Class A-2 Notes and the Class
     A-3 Notes,  the "Offered  Notes") by Capital Auto  Receivables  Asset Trust
     2001-2 (the "Trust"),  pursuant to an Indenture (the "Indenture"),  between
     the Trust and Bank One,  National  Association  as  Indenture  Trustee (the
     "Indenture Trustee");

(2)  the issuance of $64,566,572.92  aggregate  principal amount of Asset Backed
     Certificates  (the  "Certificates")  by  the  Trust,  pursuant  to a  Trust
     Agreement  (the "Trust  Agreement"),  between the Seller and Bankers  Trust
     (Delaware) as Owner Trustee (the "Owner Trustee"); and

(3)  the issuance of $447,000,000  aggregate principal amount of Class A-1 Asset
     Backed  Notes (the  "Class A-1 Notes") and the  Variable  Pay Asset  Backed
     Revolving Note,  Class 1 (the "Variable Pay Revolving  Note") in an initial
     aggregate principal amount of $425,000,000, pursuant to the Indenture.

The Offered  Notes,  the Class A-1 Notes and the Variable Pay Revolving Note are
sometimes  referred to collectively  herein as the "Notes." The Trust intends to
issue the Notes and the  Certificates  on or about June 26, 2001 (the  "Issuance
Date"). The Trust may issue additional Variable Pay Asset Backed Revolving Notes
after the Issuance Date.



Capital Auto Receivables, Inc.
June 21, 2001
Page 2

     We are  generally  familiar  with the  proceedings  required to be taken in
connection with the proposed  authorization,  issuance and sale of the Notes and
Certificates,  and in order to express the opinion  hereinafter stated, we have,
among other things,  examined and relied,  to the extent we deem proper,  on the
following documents:

          (i) a copy of the registration statement filed with the Securities and
     Exchange  Commission  (the  "Commission")  pursuant  to Rule 415  under the
     Securities  Act of 1933,  as  amended  (the  "Act"),  on Form S-3 (File No.
     333-93431)  on March 22,  2001,  with  respect  to  asset-backed  notes and
     certificates,  including the Offered Notes, to be issued and sold in series
     from time to time, in the form in which it became effective,  including the
     exhibits thereto;

          (ii) a copy of the prospectus supplement (the "Prospectus Supplement")
     and the related  prospectus (the "Base  Prospectus" and,  together with the
     Prospectus  Supplement,  the "Prospectus"),  covering the Offered Notes and
     Certificates,  substantially  in the form to be filed  with the  Commission
     pursuant to Rules 424(b)(5) and 424(c) under the Act;

          (iii) a form of the Trust Agreement;

          (iv) a form of the  Trust  Sale  and  Servicing  Agreement  among  the
     Seller,  GMAC,  as Servicer,  and the Trust (the "Trust Sale and  Servicing
     Agreement");

          (v) a form of the Indenture;

          (vi) a form of the Pooling and Servicing  Agreement  (the "Pooling and
     Servicing Agreement"), between GMAC and the Seller; and

          (vii)  such  other  documents  as we  have  deemed  necessary  for the
     expression of the opinions contained herein (collectively,  documents (iii)
     - (vi) are referred to herein as the "Transaction Documents").



Capital Auto Receivables, Inc.
June 21, 2001
Page 3


     In arriving at the opinion expressed below, we have examined and relied, to
the extent we deem proper, on the Transaction Documents. In our examination,  we
have  assumed  that  the  Transaction  Documents  will be  executed  in the form
submitted to us. We have also assumed,  without independent  verification,  that
the facts and  representations  and  warranties in the  documents  upon which we
relied are true and  correct,  and that the  transactions  contemplated  by such
documents  have been or will be  consummated  strictly in accordance  with their
terms.

     On the basis of the  foregoing and on the basis of our  examination  of the
Seller's  Amended and  Restated  Certificate  of  Incorporation  and Amended and
Restated  By-laws and a review of a Certificate of the Secretary of State of the
State of Delaware as to the good standing of the Seller, it is our opinion that:

          (a) The Seller is a corporation  validly existing and in good standing
     under the laws of the State of Delaware.

          (b) With respect to the Notes and Certificates of any series issued by
     the Trust, when duly executed and authenticated by the Indenture Trustee or
     the Owner Trustee,  as the case may be, in accordance with the terms of the
     Indenture or Trust  Agreement,  and issued and  delivered  against  payment
     thereof,  the Notes and Certificates  will have been duly authorized by all
     necessary  action of the Trust and will  have  been  legally  issued,  with
     respect to the Certificates  will be nonassessable  and will be enforceable
     in  accordance  with  their  terms  and  entitled  to the  benefits  of the
     Transaction Documents, except as the same may be limited by Title 11 of the
     United  States  Code  or  other  bankruptcy,  insolvency,   reorganization,
     moratorium,  or other laws  relating to or  affecting  the  enforcement  of
     creditors'  rights or the relief of debtors,  as may be in effect from time
     to time, or by general principles of equity.

     We do not  find  it  necessary  for  the  purposes  of  this  opinion,  and
accordingly we do not purport to cover herein,  the application of securities or
"Blue  Sky"  laws of the  various  states  to the offer or sale of the Notes and
Certificates.

     We wish to advise  you that we are  members  of the bar of the State of New
York and the opinions  expressed  herein are limited to the laws of the State of
New York, the federal laws of the United States, the General  Corporation Law of
the State of Delaware and the Delaware Business Trust Act.





Capital Auto Receivables, Inc.
June 21, 2001
Page 4

     We hereby consent to the filing of this opinion with Form 8-K in connection
with the sale of the Offered  Notes.  In giving this consent,  we do not thereby
admit that we come  within the  category  of persons  whose  consent is required
under  Section 7 of the  Securities  Act of 1933,  as amended,  or the rules and
regulations of the Securities and Exchange Commission thereunder.



                                  Sincerely,


                                  KIRKLAND & ELLIS