1950 British Grand Prix
The 1950 British Grand Prix, formally known as The Royal Automobile Club Grand Prix d'Europe Incorporating The British Grand Prix, was a Formula One motor race held on 13 May 1950 at the Silverstone Circuit in Silverstone, England. It was the first World Championship Formula One race in the modern era, as well as the fifth British Grand Prix, and the third to be held at Silverstone after motor racing resumed after World War II. It was the first race of seven in the 1950 World Championship of Drivers.
2005 Silverstone GP2 Series round
The 2005 Silverstone GP2 Series round was a GP2 Series motor race held on July 9 and 10, 2005 at Silverstone Circuit, United Kingdom. It was the sixth round of the 2005 GP2 Series season. The race weekend supported the 2005 British Grand Prix.