2011 BMW Alpina B5 Biturbo Touring unveiled at 2011 Geneva Motor Show

Article by Christian A., on March 1, 2011

The 2011 BMW Alpina B5 Biturbo Touring made its debut at the 2011 Geneva Motor Show. The station wagon version of the B5 Biturbo will be equipped with the same powertrain as the sedan. This means that it will be offered with a 507 hp and 700 Nm twin-turbocharged 4.4 liter V8 unit, which is mated to an eight-speed ZF automatic gearbox.

The sedan can go from zero to 62mph in 4.7 seconds and reach a top speed of 191 mph (307.5 km/h).

Meanwhile, the “family man” version’s acceleration time is 4.8 seconds and offers a top speed of 187 mph (301 km/h). According to a statement from the company, the BMW ALPINA B5 Bi-Turbo offers a new dimension from the “finely honed balance between athleticism, comfort and every-day luxury” that ALPINA automobiles have been known for in the past decades.

The company also said that in the last 35 years, five different generations of 5 Series-based ALPINA automobiles were developed. It stated that the sixth generation takes the “finest ingredients” of the older generations to use on its high performance luxury cars.

ALPINA decided to waive "properly stiff" suspensions on the 2011 Alpina B5 Bi-Turbo and instead move to feature a neutral set-up to achieve the best technical compromise. This was partly made possible by employing shorter yet very progressive springs as well as special suspension arms, allowing for more camber on the B5 Bi-Turbo’s front track. ALPINA also waived the usual sport-orientated method for achieving a nimble suspension with precise turn-in, and instead employed a balanced and direct chassis set-up.

This configuration is well complemented by the use of lightweight 20-inch ALPINA CLASSIC wheels wrapped in new Michelin Pilot Super Sport tires that measure 255/35ZR20 at the front and 285/30ZR20 at the rear.

These all-round non run-flat tires do not only offer a very high level of high-speed stability, but also deliver greater traction even on wet roads, improved hydro-planing behavior and superb rolling comfort.

To cater to customer demands for everyday usability, precise handling and comfort, the B5 Bi-Turbo comes with electronically adjustable suspension (Variable Damper Control) that features four different modes -- Normal, Comfort, Sport and Sport+. To activate a certain mode, the driver just needs to access a control switch on the left of the shift lever. Amazingly, ALPINA has calibrated this system and has linked it to other system parameters that regulate steering assistance, torque cushioning and DSC.

Furthermore, the new B5 Bi-Turbo is also capable of transitioning seamlessly from being a comfortably luxurious car to one that offers dynamic performance. For drivers who have to deal with stop-and-go traffic, long journeys or rough road surfaces, the B5 Bi-Turbo would be an ideal partner thanks to its primary attributes like light steering, seamless shifting transmission and ultra-comfortable ride.

If drivers need the B5 Bi-Turbo to be capable of maneuvering corners and thrilling road sections, they could just push one single button. Mandatory up-shifts -- usually required when tackling twisty sections of road or around hairpins -- are now gone thanks to a combination of the eight-speed sport automatic's manual mode and the Sport or Sport+ modes. Customers may choose to equip the Alpina B5 Bi-Turbo with the optional Dynamic Drive, a feature that reduces body roll in corners and renders the car more agile.

When the Sport+ mode is on, the B5 Bi-Turbo's dynamic control systems offer a higher version of the DSC – the Dynamic Traction Control or DTC. This feature could allow more slip at the B5 Bi-Turbo's rear wheels and could even delay the point at which the traction control systems take over.

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