[1] Interest eventually waned and in 1931 only a car race was held named as the Geneva Grand Prix.

During this event a crash involving driver Stanisław Czaykowski resulted in the death of a bystander in a house adjacent to the circuit, bringing and end to racing at this circuit.

[2][3] Two more editions of the race were held under Formula Two regulations at the Circuit des Nations in 1948 and 1950 alongside the 2nd and 3rd Grand Prix Des Nations non-championship races held to Formula One regulations.

[4] Subsequent events at the circuit were cancelled after the 1950 Nations Grand Prix, during the race Luigi Villoresi's car struck some oil on the racing surface causing him to lose control; the car crashed into a wooden fence resulting in the death of 3 spectators and injuring more than 30 others.

[5][6] The Swiss motorsport ban following the 1955 Le Mans disaster has put a definitive end to this event.