Power all the way to the redline - the BMW M3 Sedan's V8 high-rev engine has genuine race-car character. Every component has been carefully optimised to maximise output and engine speed. The result? 420 hp, up to 8,300 rpm, and 400 Nm of torque at 3,900 rpm. And that's not all: the individual throttle butterflies and engine management system ensure the engine responds rapidly to driver inputs, translating every touch of the right pedal into instant acceleration.