One other ALPINA present at the 2013 Geneva Auto Show was the B6 BiTurbo model. Based on the 6 Series Convertible, the B6 BiTurbo gets the typical ALPINA treatment with a more aggressive and sporty bodykit, along with exclusively designed wheels (20-inch wheels and uses 255 millimeters wide tires at the front axle and 285 mm wide a the rear) and other visual upgrades.

The new B6 BiTurbo uses a tuned-up version of BMW’s 4.4 liter Twin-Turbo V8 engine found in the 650i model. The Buchloe-based automaker is using Mahle pistons, a high-performance cooling system and revised ZF 8-speed automatic transmission. The B6 BiTurbo produces 540 horsepower from the standard 407 hp and the torque sent to the rear wheels accounts for 516 lb-ft (700 Nm). The M6 outputs 555 horsepower and 502 lb-ft of torque (680 Nm).


The B6 Biturbo runs 0 to 62 mph (100 km/h) in 4.4 seconds while the M6 in 4.2 seconds.

2013 ALPINA B6 BiTurbo to a top speed of 208 mph, that’s about 334 km/h.