There's one in the segment where Richard and Jeremy try to prove to the world that Lancia is the most important car maker in the world. At the beginning of the Lancia vs Morris race, Jeremy bumps into Richard's car and the front number plate on Jezza's Lancia comes loose. Few seconds later it's back in its place again. Jeremy must have pressed backspace (anyone who has played Carmageddon will know what I'm on about).