Was the car (stability control) fighting the car when you were doing that? My x5 drives fine in the snow, but one of things I dislike about it the most is that you cant completely disable the traction control system. I have tried pushing the DSC button, holding it, and still i can hear my ABS system working against me when I lose traction in the snow...annoying considering I have a lot of winter driving experience and controlled slides are nearly impossible with this vehicle...