VIDEO: BMW X6M 555HP V8 Turbo on the Race Track

.fullpost { display: inline; } Here's some new video footage of BMW's M-badged X6 SAV on the race track. Like its X5M twin, the X6M comes with a new 4.4-liter twin - turbo V8 engine delivering a maximum output of 555 horsepower and a peak torque of 680Nm or 501-lbs/ft. Power is distributed to all four wheels through a six-speed automatic transmission with the Bavarian firm claiming that