Actually the X5 uses BMW's intelligent xDrive system and Dynamic Stability Control (DSC-X) to provide a safe, driving experience. It is all wheel drive.

__________________
"What you hear in a great jazz band is the sound of democracy. “The jazz band works best when participation is shaped by intelligent communication.”
Harmony happens whenever different parts get to form a whole by means of congruity, concord, symetry, consistency, conformity, correspondence, agreement, accord, unity, consonance…….