From 1966 to 1969, the Ford GT40 took all comers at the 24 Hours of Le Mans and came away with four straight wins, including a 1-2-3 finish in 1966. The GT40 is one of the most iconic racing cars ever, and an original is sure to generate some buzz when it changes hands. This Ford GT40 roadster is something completely different, however. The car never raced, but it's one of 12 GT40 prototypes, one of five roadsters, and the only roadster that's survived in its original form. Over its lifetime, this GT40 was driven by the likes of Carroll Shelby and F1 champion Jim Clark, and along with its duties testing for the eventual Le Mans winners, makes this an important piece of racing history.