Hard body of a prototypical car. The body must be solidly fitted to the chassis in such a way as to truly represent the car being depicted. It cannot appear to be lowered to chassis relative to the 1:1 original.

All body shells must be made of hard plastic, glass fibre, resin, wood, metal or a similar material.

Fixings should not be visible from above or to the sides of the body. Tape may only be used for emergency repairs to hold the body to the chassis. All body fixings must be securely fixed to prevent loosening/dropping off during racing.

Vacuum formed bodies are not permitted.

All cars must be finished in a style sympathetic to the period being represented and carry at least two racing numbers. The car must be decorated in an authentic livery from the period it raced.

All cars must have clear windscreens etc. fitted where they appear on the prototype.

Vacuum formed windscreens etc. are permitted.

All cars must have a suitably decorated and period correct, 3 dimensional, representation of a driver consisting of at least a head, shoulders, arms, hands and the upper part of a steering wheel.

The chassis, motor and all running gear must not be visible from above or through the cockpit opening and engine bay unless that which can be seen represents parts of the real car. Suspension components and exhaust systems for example and, on the later period cars, the rear floor and diffuser.