BMW ALPINA B5 BITURBO

Powertrain

Cutting-edge BMW engine technology combined with in-depth ALPINA development and engineering means the new BMW ALPINA B5 Bi-Turbo delivers on output and torque. The new 4.4 litre 8-cylinder engine with Bi-Turbo charging, Valvetronic variable valve timing and high-pressure direct fuel injection, delivers an impressive output of 447 kW (608 hp) between 5750 and 6250 rpm. A maximum torque of 800 Nm is available from only 3000 rpm.

The resulting performance figures are outstanding. Reaching 100 km/h in just 3.5 seconds (Touring 3.6 seconds*), the new BMW ALPINA B5 Bi-Turbo saloon is the fastest accelerating model ever produced by ALPINA. The top speed is impressive 330 km/h (Touring 325 km/h*).
(* Estimated data, subject to modifications.)

The power output of this high-tech engine unfolds smoothly and with impressive emphasis across the entire rpm range. Excellent throttle response and high torque ensure that even at low engine speeds driver inputs are immediately transformed into effortless acceleration.

A number of significant technical details are responsible for the engine’s power output and performance characteristics – especially with regards to the air intake system, the intercooler and the turbocharger configuration as well as the high-performance cooling system.

The Bi-Turbo charging system comprises two specially developed turbochargers with twin-scroll turbines and large compressor wheels, which are positioned in the V of the 8-cylinder engine. This configuration ensures highly effective use of exhaust gas energy even at low engine speeds resulting in a quick power build-up and more torque at low engine speeds for overall exceptional engine response.

All components of the ALPINA air intake system - from the so called raw air intake ducts to air filter housings and clean air intake manifold - have been constructed to maximum effectiveness. Similarly, the high-performance cooling system utilises large volume radiators and optimised piping designed for maximum throughput. An indirect inter-cooler system (air/water/air) facilitates the implementation of short charge-air intake paths – with a main intercooler supplying the two large volume engine-near intercoolers. Together with additional external radiators the system ensures the thermodynamic stability of the V8 Bi-Turbo engine at all times even under the highest loads and ambient air temperatures.

All-Wheel-Drive

For the first time the BMW ALPINA B5 Bi-Turbo exploits the technical potential of BMW’s xDrive system and its intelligent and dynamic distribution of drive power which continuously and fully variable distributes torque between the front and rear axle within milliseconds for maximum traction and control. The programming of the torque distribution control, which is interconnected with the Dynamic Stability Control and the engine management system, is performance-oriented and it increases driving agility and dynamics markedly – especially under lateral acceleration – while maintaining balanced and neutral handling.

Besides allowing optimum traction under acceleration by eliminating slip induced losses, the system continuously monitors a wide range of sensory inputs – for example steering angle, lateral acceleration, yaw angle and speed – to distribute torque so as to achieve maximum safety in challenging conditions or when encountering sudden changes in road surface friction. The DTC Mode of the Dynamic Stability Control offers an even more pronounced rear wheel drive torque distribution and allows for more slip when driving at the limit.

Exhaust System

The stainless steel ALPINA sports exhaust system with two twin tailpipes is responsible for a reduction in back pressure and a great V8 soundtrack. Active exhaust valves allow the driver to influence the sound experience by switching between Comfort and Sport Mode. A typical ALPINA feature: the two twin tailpipes of the exhaust system are integrated elegantly and aesthetically into the rear apron.



Information on fuel consumption and CO2 emissions according to EU Directive:


BMW ALPINA B5 BITURBOSaloonTouring
Fuel consumption, combined:27.4 mpg27.2 mpg
CO2 emissions combined:239 g/km241 g/km
CO2 efficiency category:

Further information on specific fuel consumption and specific CO2 emissions of new passenger cars is given in „Leitfaden über den Kraftstoffverbrauch, die CO2-Emissionen und den Stromverbrauch neuer Personenkraftwagen” which can be obtained free of charge at all points of sale and from the Deutsche Automobil Treuhand GmbH (DAT), Helmut-Hirth-Str. 1, 73760 Ostfildern-Scharnhausen.