Ferrari won the 1964 World Championship by competing the last two races in cars painted not in the traditional Rosso corsa but in white and blue, as these were not entered by the Italian factory themselves, but the US-based NART team. This was done as a protest concerning arguments between Ferrari and the Italian Racing Authorities regarding the homologation of a new mid-engined Ferrari race car.
Similar to Honda with their RA271, Ferrari also raced a flat-twelve-powered car, called 1512 or 512 F1. In 1964 and 1965, both the V8 and V12 were used. The 1965 56.0 x 50.4 mm 1,489.63 cc V12 engine developed 220 bhp (164 kW) @ 12,000 rpm compared to the 210 bhp (157 kW) @ 11,000 rpm of the 1965 67.0 x 52.8 mm 1,489.24 cc V8 engine.