Revealing mistake: Right after McQueen asks what the Ghostlight is, it cuts back to the other cars. Luigi is right next to the firetruck and some gas pumps. The firetruck's door is very reflective, and the gas pumps are visible in it. But Luigi is right by the pump, and he is not reflected in the firetruck's door. (00:02:10)
Revealing mistake: When Mr. V8 is wondering what is the big deal about races, Coupe begins explaining to him why. She first says, "Let me tell you" and then says, "The racers are the best." As soon as she finishes saying "Let me tell you", there is a very visible blip in the animation when she begins saying "The racers are the best", showing that the animation in the speech was incomplete. (00:03:25)