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.
1937 San Remo Grand Prix
The first San Remo Grand Prix was a non-championship event, held on July 25, 1937, for 1500 cc Voiturette class Grand Prix cars and ran counter clockwise on a 1.862 km (1.157 m.) street circuit in the town of San Remo, known as the San Remo Circuit (Circuito di San Remo, official name: Circuita Stracittadino di San Remo)