Ha, so I am not the only one who wouldn't let someone else "abuse" my car. Bill Gates, I would let him do whatever he wanted to do in my car. I wouldn't like the idea of a friend, no matter how well-off they are do anything abnormal in my car. If something did happen it would be awkward to say the least.
s***, ive let friends drive/codrive my car in Autocross events... hahaha