Group & Class Structure

Forced induction coefficient x 1.7

Standard road cars or sand racing cars are not permitted.

FC = Modified production saloon cars
FC/1; 0 to 1300
FC/2; 1301 to 1600
FC/3; 1601 to 2000
FC/4; +2000

 

 
GT = Modified production sports cars
GT/1; 0 to 1300
GT/2; 1301 to 1600
GT/3; 1601 to 2000
GT/4; +2000

 

 
GT7 = Seven-esque type cars
GT7/1; 0 to 2000
GT7/2; +2000

 

 
C3 = Sports racing cars (eg, Norma,Radical,Mallock, FIA Gp C etc)
C3/1; 0 to 1600
C3/2; 1601 to 2000
C3/3; Over 2000

 

DE = Single seater racing cars

DE/0; Pre 94 Formula Ford
DE/1; 0 to 1300
DE/2; 1301 to 1600
DE/3; 1601 to 2000
DE/4; +2000