I my humble opinion it is a car that could be driven to a race on public road. Raced, then driven home again. The only mods would be for safety and any engine, brake and suspension adjustments that could me made at the track without replacing a major component. Race tyres could be allowed.
However these rules would be useless as I am sure it is quite possible to get an Audi / Panoz / Porsche 956 road legal almost overnight.
Simon
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