America’s two newest and at the same time, most powerful series-production muscle cars are the 2013 Ford Mustang-based Shelby GT500 and the 2013 Chevrolet Camaro ZL1. On paper, the $54,995 Camaro ZL1′s 6.2-liter supercharged V8 produces 580hp at 6,000 rpm and 556 lb.-ft. of torque (754 Nm) at 4,200 rpm, while the $54,200 Shelby GT500′s 5.8-liter supercharged V8 delivers 662hp at 6,250 rpm and 631 lb.-ft.
(856Nm) of torque at 4,000 rpm. Naturally, these numbers are at the flywheel so as with most new cars, Edmund’s took them both to the dyno meter to see what they delivered at the rear wheels.
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