The BMW Alpina B5 Biturbo Touring tuning package will debut at the Geneva Motor Show. This station wagon version of the B5 Biturbo will offer the same powertrain as the sedan -- a 507 hp and 700 Nm twin-turbocharged 4.4 liter V8 unit that is mated to an eight-speed ZF automatic gearbox.
The sedan can sprint from 0 to 62 mpg in 4.7 seconds and it offers a top speed of 191 mph (307.5 km/h). Meanwhile, the “family man” version can go from 0 to 62 mph in 4.8 seconds and reach a top speed of 187 mph (301 km/h).
In a statement, the company said that the BMW ALPINA B5 Bi-Turbo represents a new dimension in the “finely honed balance between athleticism, comfort and every-day luxury that has defined ALPINA automobiles for decades.”
In the past 35 years, five different generations of 5 Series-based ALPINA automobiles were developed. It also said that the sixth generation “draws from the finest ingredients of past generations” to appeal to the “most demanding drivers of high performance luxury cars.”
People no longer consider "properly stiff" suspensions as having positive effects on the handling of a vehicle. It has long been proven that a neutral set-up -- even at the limit – delivers the best technical compromise on the road. This neutral set-up is achieved on the Alpina B5 Bi-Turbo by employing shorter Alpina springs and specific transverse suspension arms.
This approach, along with 20-inch Alpina Classic wheels and non-run-flat Michelin Pilot Super Sport tires, results to a balanced and direct chassis set-up that allows for an agile suspension with precise turn-in. The tires -- measuring 255/35 ZR20 on the front and 285/30 ZR20 on the rear -- represents the latest in today’s ultra-high performance tire technology as they have a running surface made up of two-thirds soft compound (center) and one-third hard compound (outside and flanks). This surface mixture makes the tires very durable while offering excellent wet grip as used in high-performance vehicles. Thanks to improved tread stability and a new flank reinforcement technology, the tires are less likely to suffer from spikes in temperature and loss of grip.
The new Alpina B5 Bi-Turbo is provided with Dynamic Damper Control and Drive Dynamic Control, which are electronically adjustable dampers that allows for a comfortable ride and sports car-like handling. Dynamic Damper Control is linked into other system parameters that control steering assistance, torque cushioning and the Dynamic Stability Control system. Available with Comfort, Normal, Sport and Sport+ modes, Alpina B5 Bi-Turbo could smoothly shift from a luxurious ride to a thorough-bred sport car.
In addition, the new Alpina B5 Bi-Turbo is ideal for urban driving, long-distance trips or even on rough road surfaces, thanks to its ultra-comfortable suspension, light steering, and smooth-shifting transmission. With a single press of a button, the new B5 Bi-Turbo could transform into a car that could handle tricky corners and offer high levels of agility and light-footedness.
Thanks to cooperation between Alpina and Drexler Motorsport, a mechanical limited-slip differential is optionally available for the new BMW Alpina B5 Bi-Turbo, helping improve traction during a dynamic drive while minimizing slip though clever distribution of power and torque to the wheel with the most grip. Its operation is permanent and independent from other driving dynamic settings or systems installed in the Alpina B5 Bi-Turbo.
This mechanical limited-slip differential features torque-sensing multi-disc differential with pre-tensioning and offers active locking characteristic up to 30 percent under load and 20 percent under trailing throttle. This differential is also reactive in sensing slip while offering, superb directional stability and harmonious self-steering attributes. Furthermore, this motorsport-quality, hand-built differential makes use of forged gears and CNC milled housing.
Expectedly, the new Alpina B5 Bi-Turbo retains the typical Alpina virtues and design cues, as presented in a new manner with dynamic looks. The silhouette of both the saloon and the touring starts off with the confident and dynamic front end – which employs Xenon headlamps -- and finishes with an elegantly harmonious rear section.
The rear valance is home to the Alpina signature two double-ended-pipes and a discreet diffuser that could be removed if the Alpina B5 Bi-Turbo is bestowed with the optional ability to tow a trailer. The overall aerodynamic package for the new Alpina B5 Bi-Turbo provides the highest levels of safety and stability, especially when it is moving high speeds. The package could reduce aerodynamic lift by up to 60 percent on the front and 30 percent on the rear, depending on vehicle speed.
Inside, the new Alpina B5 Bi-Turbo exudes exclusiveness thanks to a number of discreet touches and a comprehensive level of standard equipment. For instance, the leather-wrapped interior employs adjustable Comfort seats, a superb navigation system with Bluetooth preparation, blue ALPINA gauges with black-panel LCD technology, a SWITCH-TRONIC steering wheel wrapped in hand-stitched Lavalina leather as well as electrically-adjustable steering column. The interior of the new Alpina B5 Bi-Turbo also boasts of the classic Alpina burled Myrtle wood trim as standard, or the optional Alpina Piano Lacquer interior trim with its silver diagonal rhombs.