Silverstone Circuit
The next year the Royal Automobile Club leased the airfield and set-up a more formal racing circuit. Their first two races were held on the runways, with long straights and tight hairpin corners. For 1948, it was decided to switch to the perimeter track. This arrangement was used for the  and  British Grands Prix. Several small changes were made in the track before the track underwent a major redesign after the  race.