Fangio put in a stunning display with a 187 km/h (116 mph) practice lap. With Ferrari not starting their 3-litre cars, the main opposition was to come from the Talbots, complete with dual ignition engines with 12 spark plugs. However, they suffered from radiator problems and overheated, allowing Fangio and Fagioli to lead home another Alfa demonstration run, whilst Farina succumbed to fuel pump trouble. Peter Whitehead finished third despite a fractured head gasket in the last two laps.
^1 — Philippe Étancelin qualified and drove 26 laps of the race in the #16 Talbot-Lago. Eugène Chaboud, who did not start the race despite qualifying in his own car, took over Étancelin's vehicle for 33 laps of the race.[4]
^2 — Charles Pozzi qualified and drove 14 laps of the race in the #26 Talbot-Lago. Louis Rosier, whose own car had already retired, took over #26 for 42 laps of the race.[4]
^3 — David Hampshire qualified the #34 Maserati and drove it in the race until he was forced to retire. David Murray, named substitute driver for the car, was not used during the Grand Prix.[5]