BMW claims it accelerates from 0 to 100 km/h (62 mph) in 4.4 seconds (0-60 mph: 4.1 s) and has an electronically limited top speed of 155 miles per hour (249 km/h). With the limiter removed, the top speed can reach 205 miles per hour (330 km/h).
The M6 has the same 'power button' as the M5 which modifies the throttle response. From ignition, the car delivers 399 bhp (298 kW; 405 PS), but engaging the button allows the full 373 kW (507 PS; 500 hp). It weighs 3,770 lb (1,710 kg) thanks to a carbon fibre reinforced plastic roof panel as well as thermoplastic front wings, aluminum doors and bonnet (hood) and compound boot (trunk) 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 the moment of inertia and lowering the center of mass height.
It was offered as both a coupe and a cabriolet. A lightweight CSL version of the M6 was expected to be released in the near future, however, BMW has since officially stated that no such version of the M6 will be built, as there is currently no market for such a model. The 2007 coupe is expected to have a 0-60 mph time of about 4.1 seconds (4.6 convertible)(Road and Track, March 2006). Both the M6 coupe and convertible can be visually distinguished from the 630i, 645Ci and 650i by their deeper front valance with air intakes, more contoured side sills, aerodynamic side view mirrors, an additional rear valance with diffuser and the absence of front fog lights.
In the 2010 model year, the M6 was the second-most expensive BMW sold in the U.S. after the 760Li ($137,000), with an MSRP of $108,150 for the convertible and $102,350 for the coupe. In the U.S. the M6 had one of the largest residual value drops at 19%, as it had little if any changes since its 2006 introduction. Production of the M6 ended in Summer 2010, with sales over the five year run totaling 9,087 for the coupe and 5,056 for the convertible.
