World Sportscar Championship

The World Sportscar Championship was the world endurance racing series run for sports car racing, sanctioned by the Fédération Internationale de l'Automobile (FIA), from 1953 to 1992. The championship evolved from a small collection of the most important sportscar, endurance, and road racing events in Europe and North America with dozens of gentleman drivers at the grid to a professional racing series where the world's largest automakers spent millions of dollars per year.

Source: Wikipedia — World Sportscar Championship (CC BY-SA 4.0)