The 6 Series grand tourer is based on the 5 Series and offered as a two-door coupe or convertible as well as the four-door Gran Coupe, which has room for five passengers. Power comes from a 3.0-liter, turbocharged six-cylinder or a 4.4-liter V8 mated to either an eight-speed automatic or a six-speed manual. The V8 delivers ferocious acceleration and an invigorating exhaust note. Handling is much sharper than the 5 Series, making the big coupe more of a driver's car than its predecessor. The M version is even more performance oriented. All-wheel drive is available.