I only follow NASCAR just a little bit, but they do seem to come up with some creative ways to cheat in that series...
ESPN - Failed inspection results in suspension of Vickers' crew chief, loss of points - Racing
ESPN - Failed inspection results in suspension of Vickers' crew chief, loss of points - Racing
NASCAR docked Brian Vickers 150 driver points and fined crew chief Kevin Hamlin $100,000 because the Red Bull Racing team dipped its sheet metal in acid to make it lighter than required.