Heres some ideas...
-"Auto Chandalier" (however its spelled) from Autozone, it even lights up.
-A set of F&F floormats would be awesome too.
-Maybe just put aluminum foil in part of the floor to look like those alum. floorboards.
-Make sure the air filter is snorkled up through the hood.
-Neon spray paint always helps.

Oh, and I cote for the Sandford and Son theme song for one of the videos