After the unveiling of the super-powerful and efficient D3 Bi-Turbo, Alpina has now presented the new B4 Bi-Turbo based on BMW 4-Series – Coupe and Convertible. Both comes with a tuned engine, nice body kit and all nice Alpina upgrades.

2014 Alpina B4 Bi-Turbo is powered by the well-known 3.0 liter I6 engine with twin-scroll single turbocharger, which is replaced by a twin-turbo system. The result is impressive – 410HP (300 kW) and 600Nm (444 lb-ft) of torque. The engine is connected to an 8-speed automatic gearbox. 0-100 km/h in 4.2 seconds (4.5 for the Convertible) and the xDrive models available in left hand drive markets only will be able to accelerate to 100 km/h in an astonishing 4.0 seconds. What is more, the new B4 Bi-Turbo boasts a fuel economy of 37 mpg UK – 7.6 liters / 100 km on combined cycle with CO2 emissions of just 177 g/km.

The B4 Bi-Turbo comes with increased performance, comfort, efficiency and style. More than 50 development engineers worked with specialist suppliers to enhance the engine, gearbox, cooling system, body structure, wheels, tyres, aerodynamics, steering, suspension and interior.

Standard equipment includes Adaptive M Sport Suspension, leather upholstery, electrically adjustable heated sports seats, climate control and Bi-Xenon headlights. Inside, there are luxury carpet overmats and subtle Alpina logos on the seat backs and door sills. The instruments are in Alpina Blue and the steering wheel is covered in finest-quality, hand-stitched Lavalina leather.  The acoustically insulated metal roof of the Convertible can be closed in just 20 seconds at up to 18 km/h (11 mph).

Last, but not least are the 20" Alpina alloy wheels in the company's famous Classic design.

The B4 Bi-Turbo will be launched in the UK at the Goodwood Festival of Speed (June 27 – 29), where visitors will also be able to see the XD3 luxury compact SUV. The BMW Alpina B4 Bi-Turbo is available in the UK as a Coupe for £58,950 or as a Convertible for £62,950.

Alpina B4 Bi-Turbo (2014)
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Source: Alpina