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 car that has proper M Powered engine unlike the M50d with it only being classified by M as a M Performance Car which means it isn't a fully proper M car unlike the BMW M3 or the BMW M5.