Spa-Francorchamps is the name of the oldest and most famous motor-racing circuit in Belgium. It is just a few kilometres from the town whose name has come to epitomize the health benefits of mineral-rich spring water. Opened in 1924, the track is used by all of the main car racing categories, including Formula 1. It is home to the 24 Hours of Spa, which is one of the most famous endurance races in the world and at present is exclusively for GT cars. It is one of the most technical and breathtaking circuits in Europe: the Eau Rouge/Raidillon combination of corners and the variable Belgian weather make every race thrilling and unpredictable.