I was watching this as it happened, and it was a great ending to the race both P1/P2 and Gt2...
The vette had actually passed the lap before, but cut into the pit-out lane and thus cut a part of the track. The officials ruled that he had to let the porsche pass him. So with he had one lap to lay it all out!
I think some bumping is ok (rubbin is racin), and initially I thought the porsche pushed too hard to the wall...but I would have done the same thing, beacuse otherwise the vette just pushes him wide and takes the lead, and he could have let off instead of driving until he went to the wall. Both drivers obviously really wanted to win, and were willing to drive a little more dangerously to do so.
Great racing regardless!
135i MT JB/CR ///MSport