Championship
MOTORSPORT UK = Protyre Motorsport UK Asphalt Championship    
KOE = Promotive Engineering Group - King of Epynt Challenge    
WTC = JD Tyres Welsh- National Tarmacadam Championship    
ANWCC = ANWCC Stage Rally Championship    

Class
CLASS 1 = Cars with an engine capacity up to and including 1400cc    
CLASS 2 = Cars with an engine capacity of 1401cc up to and including 1600cc    
CLASS 3 = Cars with an engine capacity of 1601cc up to and including 2000cc    
CLASS 4 = Cars with an engine capacity of 1601cc up to and including 2000cc, 4 Cylinder 8 Valve.    
CLASS 5 = Cars with an engine capacity of 2001cc and over 2 Wheel Drive    
CLASS 6 = Cars with an engine capacity of 2001cc and over 4 Wheel Drive    
CLASS 7 = Cars conforming to FIA International Group N regulations    
CLASS 8 = Cars conforming to the Motorsport UK Road Rally regulations and conform to stage rally specifications, with references to R.18.6.1. advertising will be permitted.    
CLASS 9 = Historic Cars that are Front Wheel Drive    
CLASS 10 = Historic Cars that are Rear Wheel Drive    

Class
CLASS A = Cars with an engine capacity up to and including 1400cc    
CLASS B = Cars with an engine capacity of 1401cc up to and including 1600cc    
CLASS C = Cars with an engine capacity of 1601cc up to and including 2000cc    
CLASS D = Cars with an engine capacity of 2000cc and over    
CLASS E = All 4 wheel drive cars    
CLASS F = All Historic cars. Cars entered must conform to all Motorsport UK regulations