Spanish Grand Prix
The first Spanish Grand Prix in 1913 was not actually run to the Grand Prix formula of the day, but to touring car rules, taking place on a 300-kilometre road circuit at Guadarrama, near Madrid, on the road to Valladolid.
1966 Mexican Grand Prix
The 1966 Mexican Grand Prix was a Formula One motor race held at the Ciudad Deportiva Magdalena Mixhuca on October 23, 1966. It was race 9 of 9 in both the 1966 World Championship of Drivers and the 1966 International Cup for Formula One Manufacturers. The race was the fifth Mexican Grand Prix. The race was held over 65 laps of the circuit for a race distance of . It was the first run under the new three-litre formula.