Chevrolet says the GT4.R is based on the production ZL1 1LE track-day special. In production guise, the ZL1 1LE is gunned by a 650-horsepower, supercharged LT4 engine coupled to a six-speed manual gearbox. But it's the improved aero along with the track-adjustable suspension that really shows off its racing chops. The hungry, aggressive front is festooned with air deflectors and dive planes to give the car more of the downforce it needs, and in stock form the rear wing affords it 300 pounds of downforce. The production ZL1 1LE even features Multimatic Dynamic Suspension Spool Valve dampers that give it pitlane-adjustable ride height and camber.
In track livery, the sheer effectiveness of the Camaro's aero and design enhancements might be lost. Still, looking at the rear of the car, the black paint on the rear fascia almost looks like a football player's eye black grease menacingly applied on game day.