The B5 uses a tuned version of BMW's 4.4-litre twin-turbocharged V8 powerplant, producing 500bhp and 516 lb ft of torque. That's enough, claims Alpina, for a 0-62mph time of 4.7sec and a top speed of 191mph.



Alpina often shies away from using the same powerplants as M division models, but the B5 will go head to head with the forthcoming M5 on engine choice. Its transmission will be different, though; the B5 uses a modified version of ZF's eight-speed automatic gearbox, whereas the M5 is widely tipped to use a dual-clutch unit.

Alpina claims the B5 offers class-leading fuel economy and CO2 emissions, at 26.1mpg (combined) and 252g/km respectively.

507hp
700Nm torque
0-62mph: 4.7 secs
Top speed: 191mph
8 speed switchtronic

Alpina has finally unwrapped its new B5 Biturbo, based on the all-new BMW 5 Series and as you might expect it delivers plenty of luxury, power and style. Fitted with a traditional Alpina aero kit, including a larger front air dam, the big news is under the hood where the 4.4-liter twin-turbo V8 gets pumped-up to 500-hp and 516 ft-lbs of torque. Alpina claims that’s enough to rocket the sedan to 62 mph in just 4.7 seconds. Top speed for the German saloon is rated at a startling 191-mph! Like all Alpinas, the B5 is built on the BMW assembly line and while a definite rival for the current M5, it will offer customers an option half-way between the new 5 Series and the upcoming M5, which is slated to get significantly more than 500-hp and will also come with a dual-clutch transmission, rather than the B5’s eight-speed automatic.