Alpina B6 Bi-Turbo Convertible is on its way. The vehicle is based on open-top 6-Series with 4.4 liter twin-turbo V8. The stylish convertible received both styling and performance upgrades.

The engine is boosted to staggering 507PS (373 kW) at 5500RPM and 700Nm (516 lb-ft) at 3000RPM. This is an improvement of 100PS and 100Nm over the stock 650i Convertible. 0 to 100 km/h in 4.8 seconds and a top speed of 311 km/h (193 mph). Still, the engine is not thirsty at all – 10.9 liters per 100 km on combined cycle and 225 g/km of CO2.

The exterior package includes modified front bumper, perhaps a bit different rear one and some badging.

Alpina B6 Bi-Turbo Convertible will be exhibited at the 2012 Geneva Motor Show.

Alpina B6 Bi-Turbo Convetible

Source: Auto Motor und Sport