In 1985, Piquet won a single race, the French Grand Prix at the Paul Ricard Circuit with summer conditions similar to those experienced in testing suiting the tyres, and the powerful BMW turbo engine propelling the Brabham BT54 (of teammate Marc Surer) to the then F1 speed record of on the 1.8 km long Mistral Straight during qualifying. It was Pirelli's first victory since returning to Formula One.