In the episode with the guys first big Hot Rod, where they are going to finally get their "Big Stinky Check" Titus refused to put a Fin on top of the Hot Rod so he decides to take it apart and slides under the car and starts to take it apart when the car slips and falls on him. As you watch this progress notice the ramps that the car is parked on. From shot to shot the position of this changes from crumpled down to straight. It happens many times over the course of the episode.