Open to all manufacturers of Front engined F1 and Indycars including resin bodied cars, NC-1 equivalant motor.

Some examples of eligible models:
Lancia-Ferrari D50, Bugatti T251, Gordini T32, Lotus 16, Ferrari F555, 56 and 58 Vanwall, Aston Marin DBR4, Talbot Lago, Alfa Romeo 'Alfetta', Watson-Offenhauser and Maserati 8CTF etc.

Orange end bell motor (21,500 rpm) only. Motors and pods (flat 6) in later release cars can be substituted (downgraded) to comply, e.g. Lancia LC2/85.

Some examples of eligible models:
Open to any Slot.It Group C cars including: Jaguar XJR-9, Jaguar XJR-12, Mazda 787-B, Lancia LC2, Porsche 956 (all variants), Porsche 962, Sauber C9, etc.

Open to Carrera, Fly, Ninco (but not Accura), SCX and Scalextric class only, that would be limited to Mabuchi 18K or SCX 42-B motors with LMP, GT, GT2, GT3 etc cars running in the class. Class is for models that raced from mid 1990's.

Some examples of eligible models:
Ferrari F-40, McLaren F1, Dodge Viper, Corvette C5 / C6, Audi R8, Panoz etc.

Open to any modern Scalextric B.T.C.C car.

Some examples of eligible models:
MG6, Honda Civic Type R, BMW 125 etc.

Open to any Le Mans Ford or Ferrari raced between 1964 and 1970. 18k mabuchi motor.

Some examples of eligible models:
64 Ford GT, Ford GT40, GT40 MKI, GT40 MKII, GT40 MKIV, Ferrari P4, 512, etc.

Open to home built models on either a scratch built, plastic adjustable or kit bashed (as it were from another model) chassis (no metal chassis). Scalextric or equivalent running gear, in-line 18k mabuchi motor, 27/9 gear ratio and open guide blade. With a Holden FJ lexan body.

The eligible model:
'55/56 Humpy FJ.