At its heart, the M6 Coupe and Cabriolet are all about the engine, and as expected both models use the same twin-turbocharged 4.4-liter V8 to output 560 horsepower and 500 pound-feet of torque, the latter of which peaks between 1,500 and 5,750 rpm. Mated to the same seven-speed dual-clutch gearbox as the M5, BMW claims the [...]
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