An updated taillight design with three sections was the only major change to the 1986 Grand Prix. A new 2+2 model was offered for homologation of an Aerocoupe body for NASCAR competition, just as how Chevrolet as well released the Monte Carlo SS Aerocoupe in 1986. 2+2-specific pieces are an aero nose, bubble rear glass and a fiberglass trunklid with integral spoiler. All 2+2 models were fully loaded and came equipped with a corporate 305-cid with four-barrel carburetor, the 200-4R four-speed automatic transmission and 3.08:1 rear axle ratio. They have a two-tone paint job with silver on top and gray on the bottom, with 2+2 decals and striping and 15 x 7 steel Rally II wheels. Approximately 1,225 Grand Prix 2+2's were built in 1986.