- The "Auto Swag" scene, due to Sparky's screams.
- If the accidental innuendos didn't convince you that this isn't the type of feature you show to a Nick Jr. audience, the Igor scene will. Basically, Sparky and Speedy are stuck via shoes, and Diesel's minion is about to chop them up. So, they can't move, and somebody is about to murder them on the spot. Jesus, that is pure Paranoia Fuel! And Speedy is seemingly killed. Sure, Sparky is saved (by a rocket launcher, no less) and Speedy somehow survives, but it's still pretty chilling.
Nightmare Fuel / A Car's Life: Sparky's Big Adventure