Simon Cater, Martin Braybrook, Ian Williams, Simon Banks and Justin Beadle in the #443 Brookspeed run Citroen C1 chases The #303 Citroen C1 of Jason Barron, Rainer Becker, Jurgen Rudolph, Matt Prior and Dan Trent run by C1 Club at Maggots on the Silverstone Grand Prix layout during the 2019 Trade Team Citroen C1 Challenge 24 Hour race at Silverstone.