Superformance Shelby Cobra. Replica based on a 1961-1967 Shelby Cobra. The Shelby Cobra sports car is one of the most common subject for a replica, but Superformance’s take on it is surely the best and most accurate. You can even have it in Mk. III, Mk. II FIA, and Mk. II Slab Side flavors. There’s a reason this is the only Cobra replica that’s officially licensed by Carroll Shelby Licensing Inc.