Chevrolet introduced a new Camaro model, the ZL1, at the 2011 Chicago Auto Show. The '12 Camaro ZL-1 features a supercharged 6.2 L LSA engine with 1.9 L supercharger @ 7 psi SAE-rated at 580 horsepower (427 kW) and 556 lb·ft of torque (754 N·m) – making it the most-powerful production Camaro ever. Power is delivered to the rear wheels by either a six-speed manual or automatic transmission. The ZL1's power is complemented by exclusive performance technologies, including the third generation of Magnetic Ride suspension and Performance Traction Management. Brembo calipers with six pistons per wheel in front and four pistons per wheel in back handle stopping. A duct system delivers air from the grille to the hard-working rotors. Damping is provided by Magnetic Ride Control units. This system c