You've finally found the Pontiac you have always dreamed of, but then that nagging question pops into your head. Is any body filler lurking under that paint? You could ask the seller—maybe he knows, ...

Bondo is a brand of body filler, but it's also the generic term for plastic filler that, when uttered, makes many car guys cringe. Anyone restoring an old car knows what it's like to start working on ...