[Mr.Fixit]

One big difference in their respective values is originality. The more original a cobra replica is, the more it is worth. The car with the FE will be worth more than the small block version of the exact same car. The CSX cars are built darn near exactly like the originals, down to the base components of the car. That will be worth more money than a cobra that has been redesigned to use more modern parts such as from a mustang or T-bird. Even when the performance of the modernized version is superior, the original style versions are more valuable at the time of sale. This is a generality, there are exceptions, and having Shelby's name attached to a replica certainly doens't hurt it's perceived value at the time of sale.