LOL!
Well, running out of fuel. Been there!
Trying to do that 180degree spin at race finish, only to wind up in the wall, beating the crap out of the car, been there as well.
But the most annoying is when you have a rather comfortable distance to 2nd, and you then mess it totally up, by going out of your line, hitting the curb, and then ALMOST flips the car, but then it's about to go down, but no, it flips anyway, sliding on your roof out in to the wall.
God I love this game