The 2009 BMW M6 is a high-performance variant of the 6 Series, offered in both coupe and convertible body styles. Its centerpiece is a blistering 5.0-liter V10 engine producing a mammoth 500 horsepower, mated to a 7-speed sequential manual gearbox (SMG) or optional 6-speed manual. Driving dynamics are enhanced by rear-wheel drive, Dynamic Stability Control, and M-specific suspension. Inside is a blend of sport and luxury, with iDrive infotainment, a 10-speaker audio system, and fine leather upholstery. Optional features include Heads-Up Display and Active Cruise Control, while safety equipment includes anti-lock brakes, stability control, and multiple airbags. Reviews praise the M6's thrilling performance, refined interior, and aggressive styling.