Which long Le Mans straight received two chicanes before the 1990 race?

The Mulsanne Straight received two chicanes before the 1990 24 Hours of Le Mans. The long section is also known by its French name, Ligne Droite des Hunaudières, and is often called the Hunaudières Straight.

For decades, the straight was one of motorsport's defining high-speed stretches, running for roughly 6 km. Powerful prototypes could remain at full throttle for a substantial part of the lap, with speeds exceeding 400 km/h recorded during the late 1980s. Such velocities placed severe demands on tyres, engines and aerodynamic components.

The two chicanes were introduced to reduce the maximum achievable speed. They were also required after the FIA decided it would not sanction circuits with a straight longer than 2 km. The changes transformed the straight from one uninterrupted blast into three faster sections separated by braking zones.

The name can cause confusion: the straight leads toward Mulsanne village, but its formal French name references the Hunaudières road. Conrod Straight belongs to Mount Panorama in Australia, while Kemmel Straight is at Spa-Francorchamps.