By Beny, September 15, 2011 • 2011 Frankfurt Auto Show : BMW Alpina B6 Bi-Turbo Convertible Based on the BMW 650i • Gallery 19 Images
In addition to the new Alpina D5 Bi-Turbo, Alpina has also unveiled the B6 Bi-Turbo Convertible at the 2011 Frankfurt Auto Show. Based on the BMW 650i model, the new B6 Bi-Turbo Convertible features a series of styling and performance refinements over the standard 6 Series Convertible such as an aerodynamic body kit, a four-tailpipe Akrapovic exhaust system as well as a new set of 20-inch alloy wheels with Michelin Pilot Super Sport tires.
Refinements start under the hood, where the twin-turbo 4.4-liter V8 powerplant has been revised with MAHLE pistons and also a high-performance cooling system featuring an indirect inter-cooling system. These tweaks increase the new output of 507 PS (373 kW / 500 hp) and 516 lb-ft (700 Nm) of torque. Additionally the transmission has also been tweaked to provide better acceleration. All of these tweaks allow the model to sprint from 0-100 km/h in just 4.8 seconds before hitting 311 km/h (193 mph) of maximum speed and return 21.5 mpg US of combined fuel efficiency and 255 g/km of CO2 per km.
Changes for the visual are including a more aggressive front fascia, an Akrapovic exhaust system with four-tailpipe, Alpina's iconic blue paint and also a new signature 20-spoke 20-inch alloy wheels.
photos courtesy of bmwblog.com