It was the first race meeting to use the former airfield 's perimeter roadways , rather than the main runways .
He raced a Maserati 6CM on 20 August 1949 , during the 1949 BRDC International Trophy meeting at Silverstone Circuit .
Silverstone Circuit was the first race meeting to use the former airfield 's perimeter roadways , rather than the main runways .
He raced a Maserati 6CM on 20 August 1949 , during the 1949 BRDC International Trophy meeting at Silverstone Circuit .