The 2014 BMW M6 Gran Coupe could be just what the doctor ordered. This sleeker four-door is outrageously fast and fabulously luxurious, and it's a delight to drive on most roads. If you're looking for the very best of what BMW has to offer in performance, style and outright luxury, the M6 Gran Coupe should be right up your alley. It's powered by a twin-turbocharged V8 rated at 560 horsepower with the standard seven-speed automated manual transmission. M6 Gran Coupe is undeniably quick, and the twin-turbocharged V8 has buckets of power all over the rev range, with very little of the lag associated with turbo engines. The upshot is that no matter which gear you have the transmission in, this car feels fast, and a dramatic exhaust note heightens the experience. At the same time, it's all very refined, and when you're just cruising the highway, the engine is so quiet that you'll scarcely be aware of its prodigious power. Additional features included; Competition Package($6,000), Driver Assistance Plus ($1,900), Executive Package($5,500), as well as the Bang & Olufsen Sound System($3,700).