Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the following Registration Statements:

1.	Registration Statement (Form S-3 No. 333-75714) of Group 1 Automotive, Inc. and related Prospectus;
2.	Registration Statement (Form S-3 No. 333-137088) of Group 1 Automotive, Inc. and related Prospectus;
3.	Registration Statement (Form S-4 No. 333-109080) of Group 1 Automotive, Inc. and related Prospectus;
4.	Registration Statement (Form S-8) pertaining to the Group 1 Automotive, Inc. 1996 Stock Incentive Plan (No. 333-42165);
5.	Registration Statement (Form S-8) pertaining to the Group 1 Automotive, Inc. 1996 Stock Incentive Plan (No. 333-80399);
6.	Registration Statement (Form S-8) pertaining to the Group 1 Automotive, Inc. 1996 Stock Incentive Plan (No. 333-75784);
7.	Registration Statement (Form S-8) pertaining to the Group 1 Automotive, Inc. 1996 Stock Incentive Plan (No. 333-115961);
8.	Registration Statement (Form S-8) pertaining to the Group 1 Automotive, Inc. 1998 Employee Stock Purchase Plan (No. 333-42165);
9.	Registration Statement (Form S-8) pertaining to the Group 1 Automotive, Inc. 1998 Employee Stock Purchase Plan (No. 333-70043);
10.	Registration Statement (Form S-8) pertaining to the Group 1 Automotive, Inc. 1998 Employee Stock Purchase Plan (No. 333-75754);
11.	Registration Statement (Form S-8) pertaining to the Group 1 Automotive, Inc. 1998 Employee Stock Purchase Plan (No. 333-106486);
12.	Registration Statement (Form S-8) pertaining to the Group 1 Automotive, Inc. 1998 Employee Stock Purchase Plan (No. 333-137081);
13.	Registration Statement (Form S-8) pertaining to the Group 1 Automotive, Inc. 401(k) Savings Plan (No. 333-80399);
14.	Registration Statement (Form S-8) pertaining to the Group 1 Automotive, Inc. 401(k) Savings Plan (No. 333-113679);
15.	Registration Statement (Form S-8) pertaining to the Group 1 Automotive, Inc. Deferred Compensation Plan (No. 333-83260);
16.	Registration Statement (Form S-8) pertaining to the Group 1 Automotive, Inc. Deferred Compensation Plan (No. 333-115962);
17.	Registration Statement (Form S-8) pertaining to the Group 1 Automotive, Inc. Deferred Compensation Plan and the Group 1 Automotive, Inc. 2007 Long Term Incentive Plan (No. 333-145034);

of our reports dated February 22, 2008, with respect to the consolidated financial statements of Group 1 Automotive, Inc. and subsidiaries, and the effectiveness of internal control over financial reporting of Group 1 Automotive, Inc., included in this Annual Report (Form 10-K) for the year ended December 31, 2007.

/s/ Ernst & Young

Houston, Texas
February 22, 2008