For stripping a whole car, gimme aircraft stripper, or stryp-eez or any o' the other methylene chloride strippers, steel wool and a bucket o' soapy water, every time, then a razor scraper for the corners and crevices, and wipe it down with mineral spirits. Comes off fast, clean, and ya' never hafta worry about warping anything. Collect up the water and crud, though, or you'll obliterate half yer biosphere and maybe the pets and any crawling babies.