Not sure if anyone's mentioned it yet ( just skimmed through a few posts) one of the best (in my opinion) obscure/TV car has to be the Coyote from Hardcastle and McCormack. I know it was a kit based kind of on the Can-Am cars(actully a little bit modified Manta Montage kit). I am pretty sure they kept more than one on hand too..stunts ,etc... Not sure of power plant...sounded pretty mean though...could have been dubbed too. Body-wise was one of the coolest designs I've seen...even still today. But In my book the 308's from Magnum are my favorite..timeless,flat,fast and cool not to mention the best tv show there ever was. This might also be of interest
http://www.codeoneauto.com