The Canadian American Challenge Cup (Can-Am) was cosanctioned by the SCCA and CASC; it was a series nicknamed the “unlimited” series. Although there was a basic set of rules, the cars had to be two-seaters with bodywork covering the wheels, have doors, a windscreen and brake lights and meet various safety requirements. There was no regulation on the cars’ dimensions, minimum weight, materials used or size of the tires. This was all open to the creativity of the designer. The…
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