- 2000cc (2litre) engines(4,5 or 6 cylinder)

- 4 doors

- Front wheel drive

- Must run on pump petrol

- 6 speed sequential gearbox

- Fully integrated roll cage

- Aero Package ( Front splitter, rear wing). These parts of the vehicle must remain unchanged throughout the season.

- 2 races per meeting. One short, non-stop "Sprint" race and one longer "Feature" race. In the feature race each car must stop in the pits at least once to have any 2 wheels changed.