De Tomaso P70 Spyder Prototype, 1965, by Fantuzzi. Powered by a Carroll Shelby supplied 475hp version of Ford’s 289ci (4.7 litre) V8, Alejandro de Tomaso had originally planned the car as a mid-engined open-top grand tourer. Instead Shelby wanted to use the car in the United States Road Racing Championship and asked Pete Brock to work on the design with Fantizzi. However Shelby withdrew from the project to work on Ford’s GT40 project. A second single seat prototype was built (the Sport 5000) specifically for racing. The second car made its debut in July 1966 in the Mugello Grand Prix round of the World Sportscar Championship; however, it retired on the opening lap and never raced again.