The GT included a 125 hp 2.8-liter V6, which grew to a 3.1 L in 1990, and the Z51 suspension package with 15-inch styled steel wheels and Goodyear Eagle GT tires. Also included was a sport cloth interior and sport steering wheel. The GTU was available from 1988 until the 1990 model year. Beretta GTUs (with the FE7 suspension package) were shipped to Cars and Concepts where they were equipped with 16x7-inch aluminum alloy wheels, custom body kits, a rear spoiler, mirrors, custom trim, and decals. With the FE7 Chevrolet claimed the Beretta GTU would deliver 0.92 g on the skid pad, a claim that most magazines of the day failed to duplicate. GTUs were only available in black, red and white.