The BMW X6 M uses a version of BMW’s latest twin-turbocharged 4.4-liter V8. Output is 547 horsepower at 6,000 rpm and peak torque is 680 newton-metres, available between 1,500 and 5,650 rpm. The car can accelerate from zero to 60 mph (0–97 km/h) in 4.2 seconds.