Ferrari 250 Le Mans
The mid-engined 250 Le Mans looked every bit the prototype racer but was intended to be produced as a road-going GT.
Descended from the 250 P, the Le Mans also appeared in 1963 and sported Pininfarina bodywork. Ferrari was unable to persuade the FIA that he would build the 100 examples required to homologate the car for GT racing. Eventually, 32 LMs were built up to 1965.
As a result, Ferrari withdrew from factory participation in the GT class of the 1965 World Sportscar Championship, allowing the Shelby Cobra team to dominate the class.
Source: Wikipedia, 2011