An early development vehicle of the 2012 Chevrolet Camaro ZL1 is tested at General Motors’ Milford Proving Grounds. The ZL1 features a 580 horsepower (427 kW) and 556 lb.-ft. of torque (754 Nm) â?? making it the most powerful production Camaro ever — as well as exclusive Performance Traction Management and third-generation Magnetic Ride Control. To ensure the Camaro ZL1 is track-capable from the showroom, other standard equipment on the ZL1 includes high-performance brake-cooling ducts, rear-differential cooler, and an integrated engine-and-transmission cooler. The 2012 Camaro ZL1 will go on sale in early 2012.