when a car hits a tree not frontly but from its side, it usually wraps around the tree.
It could be that Emergency services had to cut the two parts of the car to open it and extract the driver from it.
another experience of car vs tree here (another audi... warning, despite no real graphic, the story is kind of sad since the two people did not survive this accident
) :
http://timeslips.bootnetworks.com/a3tree/index2.html