Input (grade 13): The Dunlop MSA British Touring Car Championship withdrew the track from its calendar in 2007, however demand from teams and sponsors saw the return of Silverstone to the 2008 BTCC calendar.
Output (grade 8): The Dunlop MSA British Touring Car Championship withdrew the track from its calendar in 2007. Strong demand brought the series back to Silverstone for the 2008 BTCC calendar.