Toward the end of the movie, where the car is speeding toward the thugs at the bad guys house, the car is supposed to be traveling without ANY occupants. This is revealed after the car crashes and the thugs find only a knife which was holding down the accelerator, and no one is the car. While the (empty) car is speeding toward the bad guys, you can see a person's left hand on the steering wheel. Looks like there might be a glove on the hand. So much for the knife trick.