Classic Single Seater Racing of the 60's and 70's.
There are a wide variety of eligible cars from the period in question, ranging from the 1000cc Formula Junior and F3 cars through to the 1600cc Formula 2 cars of 1971 fitted with wings and slicks – and many other classes in-between.
Class A Formula One cars Up to 1500cc V8 as raced between 1/01/61 – 31/12/65
Class B Formula 2 cars up to 1000cc built up to 31/12/66
Class C Formula 2 and Formula Atlantic cars up to 1600cc built between 1/1/67 up to 31/12/71
Class D Formula 3 1000cc cars built and raced between 1/1/64 and 31/12/70
Class E Formula Junior cars built and raced before 31/12/63
Class F Single seater racing cars built and raced between 1/1/67 and 31/12/71 running to HSCC Historic Formula Ford Series specification using either HFF Approved Avon Tyres or CRC Dunlop Tyres. Formula B/Formula
Class G Libre/ Single Seater Up to 1600cc built before 31/12/71 (not to include modified Formula Ford Chassis)
Class H Invitation Class for Formula 3 Cars up to 1600cc built between 01/1/71 and 31/12/73