This new and improved GT40 was the most technically advanced and powerful racing prototype of its time, fulfilling Henry Ford II’s dream of building an all-American racer driven by American drivers to decimate at Le Mans. In 1967, the GT40 Mk IV, with Shelby-American drivers Dan Gurney and A.J. Foyt at the wheel, secured a second consecutive victory for Ford at Le Mans and also won the FIA’s Index of Thermal Efficiency as the most fuel-efficient entrant (put that in your cannoli, Ferrari). The GT40’s dominance was undeniable, and Ford’s double defeat of Ferrari became one of the most memorable moments in motorsports history.