The BMW M6 is a motorsports-bred, rear-wheel-drive monster with a seven-speed dual-clutch transmission, quick-ratio steering, and suspension that favors handling over ride quality.

The 2015 BMW ALPINA B6 xDrive Gran Coupe will make its North American debut at the New York International Auto Show in April and will go on sale immediately thereafter.

While BMW has its own in-house performance division (called "M"-as in M3, M5, M6, etc.), Alpina's vehicles differ in that they are all fitted with automatic transmissions and place an emphasis on ...