Group 1 Automotive (GPI) 8-K Group 1 Automotive to Present at the Bank of America Merrill Lynch 2015 New York Auto Summit

Exhibit 99.1

FOR IMMEDIATE RELEASE

Group 1 Automotive to Present at the Bank of America Merrill Lynch 2015 New York Auto Summit

HOUSTON, Mar. 27, 2015 —Group 1 Automotive, Inc. (NYSE: GPI),an international, Fortune 500 automotive retailer, today announced that senior management will present at the Bank of America Merrill Lynch 2015 New York Auto Summit on April 1, at the JW Marriott Essex House in New York City. The presentation is scheduled to begin at 10:40 a.m. ET.

The presentation slides and a live audio webcast, with a replay available through May 15, will be available on the Investor Relations section of Group 1’s website athttp://www.group1corp.com/news/events.aspx orwww.group1auto.com.

About Group 1 Automotive, Inc.
Group 1 owns and operates 151automotive dealerships, 196 franchises, and 38collision centers in the United States, the United Kingdom and Brazil that offer 32 brands of automobiles. Through its dealerships, the Company sells new and used cars and light trucks; arranges related vehicle financing; sells service and insurance contracts; provides automotive maintenance and repair services; and sells vehicle parts.

SOURCE: Group 1 Automotive, Inc.

Investor contacts:
Sheila Roth
Manager, Investor Relations
Group 1 Automotive, Inc.
713-647-5741 |sroth@group1auto.com

Media contacts:
Pete DeLongchamps
V.P. Manufacturer Relations, Financial Services and Public Affairs
Group 1 Automotive, Inc.
713-647-5770 |pdelongchamps@group1auto.com
or
Clint Woods
Pierpont Communications, Inc.
713-627-2223 |cwoods@piercom.com