The new BMW M6 concept made its debut at the 2005 Geneva Motor Show. It is based on the BMW E63/E64 6-Series, introduced in 2004. It shares the same 5.0 L V10 S85 engine and SMG III gearbox with the E60 M5, and produces 500 hp (373 kW) / 384 ft·lbf (521 nm).
BMW claims it accelerates from 0 to 100 km/h (62 mph) in 4.6 seconds (0-60 mph: 4.1 s and has an electronically limited top speed of 250 km/h (155 mph). With the limiter removed, the top speed can reach 330 km/h (206 mph). The M6 has the same ‘power button’ as the M5 which modifies the throttle response.
From ignition, the car delivers 399 hp (298 kW), but engaging the button allows the full 500 hp. It weighs 3770 lb (1710 kg) thanks to a carbon fibre reinforced plastic roof panel as well as thermoplastic front wings, aluminum doors and bonnet and compound boot lid.The carbon fiber and other light materials are used in places like the bumpers and roof that are far from the centre of gravity and/or high up, so that they not only reduce the overall weight but improve the handling by reducing, respectively, the moment of inertia and the centre of mass height.
It is currently available as a coupe and a cabriolet. A lightweight CSL version of the M6 is expected to be released in the near future. The 2007 Cabriolet is expected to have a 0-60 time in about 4.6 seconds (Road and Track, September 2006). It can be visually distinguished from the 630i, 645Ci and 650i by its deeper front valance with air intakes, more contoured side sills, an additional rear valance with diffuser and the absence of front fog lights.
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