M6 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 5.0L V10 S85 engine and SMG III gearbox with the E60 M5,and produces 514 hp / 520 N-m (380 lb-ft).The M6 accelerates from 0 to 100 km/h (62 mph) in 4.4 seconds and has an electronically limited top speed of 155 mph (249 km/h)
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, its $102,350 base price which put it in Porsche territory. Production of the M6 ended on 19 July 2010. In the M6 there many lightweight materials used such as carbon-fiber in 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 butt improve the handling by reducing , the moment of inertia and the center of mass height. It’s offered as either a sedan or a cabriolet.