Pontiac pushed the Grand Prix performance envelope with the Autocross concept, focusing on the often mutually exclusive attributes power and handling. The stock 3.8-liter V-6 was replaced with a 5.3-liter V-8 tuned to produce 350 horsepower. The additional weight required a suspension revision, so Pontiac took it a step further with track-tuned shocks and springs lowering ride height and improving response, along with larger anti-roll bars front and rear. Behind the 18-inch wheels wrapped with BFGoodrich g-force T/A KD performance tires are custom rotors and calipers from Stainless Steel Brake Corp. The exterior features several custom carbon-fiber pieces, including an all-carbon hood. The front and rear fascias, and rear spoiler are also enhanced carbon pieces. Inside, sport touches include aluminum pedals, sporty, sleek seats trimmed with Naugahyde material, and Delphi custom gauge cluster package with redesigned graphics.
