EX-23.1 4 h15657exv23w1.txt CONSENT OF ERNST & YOUNG LLP EXHIBIT 23.1 CONSENT OF INDEPENDENT AUDITORS We consent to the incorporation by reference of our report dated February 26, 2004, in the Registration Statement (Form S-8) pertaining to the Group 1 Automotive, Inc. 1996 Stock Incentive Plan with respect to the consolidated financial statements of Group 1 Automotive, Inc. included in its Annual Report (Form 10-K) for the year ended December 31, 2003, filed with the Securities and Exchange Commission. /s/ Ernst & Young LLP Houston, Texas May 26, 2004