The BMW X5 M (F85) is a mid-size luxury SUV that is based on the BMW X5 (F15) which has been built by BMW since 2014. Unlike the BMW X5 M50d the X5 M is a full BMW M series car that has the M Powered engine. In comparison, the M50d is classified as an "M Performance Car" which means it isn't a full M car unlike the BMW M3 or the BMW M5.
Its S63B44T2 4.4 liter V8 engine has 575 hp and 553 lbft of torque, which made it the most powerful engine ever developed for an all-wheel drive BMW at the time. The engine has M TwinPower Turbo and Valvetronic technologies, to deliver a 0–100 km/h time of 4.2 seconds.[1]
An M-tuned xDrive all-wheel drive system provides traction. It distributes drive between the front and rear axles, while Dynamic Performance Control distributes torque between the 21-inch M Double-spoke light-alloy wheels—all for dynamic driving and all-road capability.[1]