Setting these M-powered models apart from their tamer brethren are a slew of modifications both inside and out. A power dome on the aluminum hood of both cars signals added power under there, while extended wheels arches and wider side skirts give the car a larger, more aggressive stance. The insides of these wheel arches can be fitted with either 18″ or 19″ forged M alloy wheels. The front bumper has large air intakes and aerodynamically designed inlets. In the rear are a spoiler and a bumper complete with air outlets and a diffuser.
Under that aforementioned power dome on the hood is a twin-turbo 3.0-liter inline size that produces 430 hp, roughly a 15 hp increase from the older M3’s V8. All of this power will, of course, be sent to the rear wheels via a single-piece carbon fiber reinforced prop shaft. Mated to the engine is either a six-speed manual or a seven-speed dual clutch transmission.
Be sure to check back tomorrow, when BMW officially unveils these two cars.[nggallery id=32]