Tokyo 2011: Alpina BMW B6 Biturbo Coupe

2011 Tokyo Auto Salon

The German tuning firm has unveiled their variant of the BMW 6-Series.

If you can't wait for BMW to get their act together and bring out an M6, get in touch with Alpina, who have today unveiled their B6 Biturbo Coupe as a follow-up to the convertible from Frankfurt. Its twin-turbocharged 4.4-liter V8 now produces 533hp and 516lb-ft of torque, sprints from 0-62mph in 4.4 seconds and hits a top speed of 197mph. This extra power and torque can be provided over a broad rpm range as the two turbochargers have been configured in parallel, each feeding one of the two cylinder banks.

A collaboration with transmission specialist ZF resulted in an eight-speed sport automatic transmission featuring a limited-slip rear differential, and another collaborative effort, this time with Akrapovic, concluded with a lightweight titanium exhaust system replacing the twice-as-heavy stainless steel version. Electronically adjustable dampers and active roll stabilization comes as standard and four modes of performance - Comfort, Comfort +, Sport, and Sport + - can be selected. As for the body, Alpina's design team have applied several aerodynamic and handling aids to the 6-Series donor body.

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These include an integrated carbon-fiber splitter, 20-inch alloys, and a dramatic wing to replace the rear spoiler. Hand-stitched leather trim and an Alpina steering wheel are highlights of the interior enhancements. The upgraded 533hp engine now also sits in the B6 Cabriolet.

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