A challenge for drivers has always been to take Eau Rouge/Raidillon flat out. Touring cars can take the corner at 160–180 km/h, and Formula One cars at over 300 km/h due to high downforce. World Champion Jacques Villeneuve once spoke of the effects of downforce, saying that to get through the corner the drivers have to drive faster, because downforce increases the faster a race car goes. Without lifting the throttle through Eau Rouge, a car would be flat out from La Source, along the Kemmel straight to Les Combes, a total distance of 2.015 km.