Delage’s 15 S8 was the most successful GP car in 1927. That year, it won the French, Spanish, European & British events. Even after its successful campaign, the 15 S8 continued to be competitive up to 1936 in voiturette classes!
During the cars first race at the 1926 European GP, the cars got very hot, and cockpit ventilation was desperately needed. In the end, all three cars were beaten by Bugatti, the only other manufacturer at the race. Delage finished their season at the first ever British GP. The cars were prepared with more cockpit vents, but that wasn’t enough to cool the driver’s burning feet. After 287 miles (462 km) Wagner and Sénéchal won just 12 seconds ahead of the Bugatti piloted by Malcolm Campbell.