All 119 A1 - 'Standard Cars' Up to 1600cc - 2wd Only, List 1A Tyres 3 A2 - 'Standard Cars' Over 1600cc to 2000cc - 2wd Only, List 1A Tyres 6 A3 - Up to 1600cc - 2wd Only, List 1A or 1B Tyres 4 A4 - Over 1601cc to 2300cc - 2wd Only, List 1A or 1B Tyres 12 A5 - Over 2301cc - 2wd Only, List 1A or 1B Tyres 14 A6 - 4wd - All Engine Capacities, List 1A or 1B Tyres 3 A7 - Up to 1800cc, List 1A or 1B Tyres, Excluding Motorcycle Engine Vehicles 3 A8 - Over 1800cc, Including Motorcycle Engine Vehicles, List 1A or 1B Tyres 12 B9 - Up to 1400cc 6 B10 - Over 1400cc to 2000cc - Excluding Cars in Appendix 1 7 B11 - Over 2000cc - Excluding Cars in Appendix 1 8 B12 - Up to 2000cc 0 B13 - Over 2000cc Including Motorcycle Engine Cars 1 C14 - Sport Libre Car Engines up to 1800cc and Motorcycle engine cars up to 1100cc 2 C15 - Sport Libre Car Engines Over 1800cc and Motorcycle Engine Cars Over 1100cc 3 D16 - Racing Cars up to 1100cc & Racing Cars Conforming to 'Formula Ford' 2 D17 - Racing Cars over 1100cc 4 INV1 - Rallycross Cars up to 1600cc 0 INV2 - Rallycross Cars over 1600cc 1 INV3 - 'Rally Cars' conforming to R.46 - R49 4 INV4 - SBD Motorsport British Sprint Championship 14 INV5 - Healeysport Championship 10