Around 20 Super 90 Coupes were ordered with the lightweight GT package for racing. They used aluminum panels, a lightweight interior and plexiglas windows to shed over 200 lbs off the standard production coupe.

Inside the car came equipped with a roll bar, leather-strap window lifts and speedster seats. The lightweight alloy wheels and 80-litre fuel tank were optional extras.

Aluminum exterior panels included the doors, hood, rear deck lid.