BMW recently launched the “M” variants of their X5 and X6 models. The X6 M receives the same 4.4-litre V8 twin scroll, twin-turbo motor as its X5 M sibbling. Producing 413kW and 679Nm of torque the new “M TwinPower Turbo” V8 rockets the X6 M to 100km/h in 4.7 seconds, identical to that of the X5 M.