This happened on my campus a few friday's ago.
I'm not sure of the whole story but I do know that this Avalanche was going WAYYY too fast on campus, couldnt turn, jumped a curve and slamed into a friend of mine's Bonneville.
he's actually the "Dan McClain" of Bonnevilleclub.com, so you know he wasn't too happy when this happened to his pride and joy.
theres pictures listed in this thread about it
Bonnevilleclub.com