I think a copy of a GT90 would be an excellent car. I can't say I have ever heard of anyone making one. I think the Mustang Mach III show car is a super looking car too. I think I'd build a Mach III kit car over a Cobra kit car any day but nobody makes one. In my opinion, I think I'd take a GT90, Mach III or a GT40 Mark IV over a Mark I or Mark II. Whatever the case, the vehicle would have to be powered by a Ford engine.