Happy torque with BMW’s M division
THE ultra-high performance with exceptional fuel efficiency characterises every car from BMW’s sporty M division is once more fused with all-roads, all-weathers capability with the introduction of the second generation X5 M and X6 M.
Compared to the 2009 models which they succeed, they bring improvements of up to 10 per cent in power, torque and performance while lowering fuel consumption and carbon dioxide emissions by more than 20 per cent.
Both models are powered by a new 4.4-litre M TwinPower Turbo V8 engine with two TwinScroll turbochargers. With outputs of 575hp and 750Nm, it is the most powerful engine ever developed by BMW for four-wheel-drive vehicles. It is linked to a newly developed eight-speed M Steptronic automatic transmission now featuring Drivelogic.
The cars’ outstanding driving dynamics benefit from specific tuning by BMW M, while their bespoke interior and exterior designs blend sportiness, luxury and functionality.
The bare figures for the new BMW 4.4-litre V8 engine in the X5 M and X6 M are impressive enough in themselves, but they tell only half the story.
This new power unit develops its maximum 575 hp – four per cent more than the engine in the previous models – from 6,000 to 6,500 rpm, while peak torque of 750 Nm (a gain of 10 per cent) is available from 2,200 to 5,000 rpm. This combination of high-revving capability with linear, rapid response is thanks to the engine’s innovative M TwinPower Turbo technologies, which include cross-bank exhaust manifolds, two TwinScroll turbochargers, direct fuel injection working at a pressure of up to 200 bar and VALVETRONIC variable valve control.
These technologies, in combination with the newly developed eight-speed M Steptronic transmission with Drivelogic, ensure performance more than meets the expectations of a car from BMW M while at the same time demonstrating exceptional fuel efficiency.
The X5 M and X6 M accelerate to 62mph in a supercar-equalling 4.2 seconds, but in normal road driving they are capable of 25.4mpg, with CO2 emissions of 258g/km – reductions of more than 20 per cent compared with previous models.
The cross-bank exhaust manifold sends two converged streams of exhaust gas to the TwinScroll turbochargers through four separate exhaust ducts.
The engine features an extremely rigid closed-deck crankcase which permits the high fuel injection pressures necessary for it to achieve its impressive power output.
The BMW X5 M and X6 M arrive in dealerships on April 11, 2015, and will be priced at £90,170 and £93,070.
BMW X5 M BMW X6 M 575 575 750 750 4.2 4.2 155* 155* 25.4 258 25.4 258 * Electronically limited