Silverstone Circuit is an English motor racing circuit next to the Northamptonshire villages of Silverstone and Whittlebury. Nearly half of the circuit is across the Northamptonshire boundary in Buckinghamshire. The closest large towns are Northampton and Milton Keynes. It is best known as the home of the British Grand Prix, which it first hosted in 1948 and which has been held on the circuit every year since 1987. The circuit is also home to the BRDC International Trophy, awarded to the winner of a race for historic F1 cars at the annual Silverstone Classic meeting.