Ferrari won the 1964 World championship with John Surtees by competing the last two races (the United States Grand Prix and Mexican Grand Prix) in Ferrari 158 cars painted white and blue -the national colours of the teams from the United States- as these were entered not by the Italian factory themselves but by the US-based NART team. This was done as a protest against the agreement between Ferrari and the Italian Racing Authorities regarding their planned mid-engined Ferrari race car. The 1964 Mexican Grand Prix was the last time Ferrari cars wore other than the traditional red colour in Formula One.