Bayol also raced sports cars, mostly driving DB-Panhards for the Deutsch Bonnet works team including winning the 750cc class and Index of Performance at the 1954 24 Hours of Le Mans.

[5] For 1952, Bayol ran a modified OSCA MT4 in the Grands Prix de France races with little success, again due to a relatively underpowered 1.3L engine, but performing better at tighter circuits such as at Pau.

[7] Bayol debuted the new OSCA 20 Formula 2 car (featuring a full-sized two-litre engine) at the Grand Prix du Comminges where he was running third or fourth when his race was ended by issues in the pits.

[8][6] He then went on to make his World Championship debut at the 1952 Italian Grand Prix at Monza where he qualified tenth but retired on the first lap with a gearbox failure.

[9] With the World Championship races returning to Formula One regulations for 1954, Bayol joined the Gordini team alongside lead driver Jean Behra.

In the Buenos Aires Grand Prix Formule Libre race he crashed into the crowd on the first lap, killing a spectator and injuring a police officer.

They were leading the race when Bonnet crashed due to a brake failure, with team-mates Paul Armagnac and Gérard Laureau going on to win in the second DB-Panhard.

This caused him to have a severe crash, destroying the car and leaving him in hospital with a fractured skull and broken vertebrae, ending his season.