Championship Competitors
This page will be updated regularly with details of member cars and drivers.
Class Definition
Each category shall be separated into the classes identified below.
| Group C (1973-1984) | Group A (1985-1992) | ||
| C5 | 0 to 1300cc | A3 | 0 to 2000cc |
| C4 | 1301 to 1600cc | A2 | 2001 to 3000cc |
| C3 | 1601 to 2000cc | A1 | over 3001cc |
| C2 | 2001 to 3000cc | ||
| C1 | over 3001cc | ||
Note 1: Vehicles fitted with forced induction (ie turbo charging) will be classed as per their resultant capacity, calculated as follows:
Resultant Capacity = Measured Capacity x 1.7
Note 2: Vehicles fitted with rotary engines will be classed as follows:
– 12a rotary bridge port type engines shall compete in the 2001 – 3000cc class
– 13b rotary peripheral port type engines with either carburetion or injection shall compete in the 3000cc and over class


