Class A
FIA Rally2, R5 and S2000 specification cars and any derivatives therefrom, plus World Rally cars with a sequential gearbox.
Class B
4-wheel drive cars over 2000cc or forced induction engines over 1500cc that are not eligible for Class A, including FIA Rally3 cars.
Class C
2-wheel drive cars with normally aspirated engines over 2000cc or forced induction engines over 1500cc plus all FIA RGT cars.
Class D
Cars with normally aspirated engines over 1600cc up to 2000cc or forced induction engines up to 1500cc plus all FIA Rally4 or R2 cars with forced induction.
Class E
Cars with normally aspirated engines over 1400cc up to 1600cc or forced induction engines up to 1000cc not included in Class D, plus all FIA Rally5 cars.
Class F
Cars with normally aspirated engines up to 1400cc plus all cars complying with Motorsport UK classes 9, 10, 11, 12 & 13.