The new BMW M6 made its debut at the 2005 Geneva Motor Show. It is based on the BMW E63/E64 6-Series, introduced in 2005. It shares the same 5.0 L V10 S85 engine and SMG III gearbox with the E60 M5, and produces 507 ps (373 kW) / 384 ft·lbf (521 N·m).
BMW claims it will accelerate from 0 to 100 km/h (62 mph) in 4.6 seconds and has an electronically limited top speed of 250 km/h (155 mph).
The M6 will have the same ’power button’ as the M5 which modifies the throttle response. From ignition, the car delivers 400 hp (298 kW), but engaging the button allows the full 507 ps. It weighs 1710 kg (3770 lb) thanks to a carbon fibre roof panel as well as thermoplastic front wings, aluminium doors and bonnet and compound boot lid.
Initially it will only be available as a coupe, although a cabriolet and a lightweight CSL version are expected in 2006 and 2007 respectively. It can be visually distinguished by its deeper front valance with air intakes, more contoured side sills and a rear valance with diffuser as well as four tail pipes.