I know exactly how you feel.
A couple of months ago I took my dad's brand new 335i M-Sport to get it checked because a yellow warning light came on. The dealer fixed whatever it was but when I picked it up I stopped at a gas station on my way back, and while I'm standing outside I look at the front driver's side wheel (193 spyder) and there was a 2inch long BAD curb rash on it!
The car had 600mi and the dealer tried to blame it on us even though they inspected the car before taking it in!!