| Class | Description |
|---|---|
| A1 | Saloon & Sports Cars over 2500cc |
| A2 | Saloon & Sports Cars up to 2500cc |
| B | Saloon & Sports Cars (Treaded Tyres) over 2000cc |
| C | Saloon & Sports Cars (Treaded Tyres) 1601cc - 2000cc |
| D | Saloon & Sports Cars (Treaded Tyres) up to 1600cc |
| E | Kit Cars |
| H | Saloon & Sports Cars originally manufactured before 1974 |