Well I would vote for the 68 Barracuda as IMO they just look right as race cars. HOWEVER I have seen a couple that have been done(Hemphill's comes to mind)and did not like the way they turned out, just my opinion. I actually like the Jeffers Cuda, not real hip on his Duster/Demon body though. It does not retain a lot of the lines of the original, which to me the Cuda does. IMO doing a Challenger would just be duplication what is already out there with the Jeffers car.