First Drive: 2015 BMW X5 M 575 hp Good exhaust sound

The new M TwinPower Turbo engine for the BMW X5 M and BMW X6 M is the most powerful unit ever developed by BMW for an allwheeldrive vehicle. Boasting innovative M TwinPower Turbo technology with a pair of TwinScroll turbochargers, crossbank exhaust manifolds, VALVETRONIC and High Precision Direct Petrol Injection, the 4. 4litre V8 produces maximum output of 423 kW, 575 hp between 6, 000 and 6, 500 rpm. That represents a four per cent increase over the predecessor models. The step up is even clearer when it