A Brief History
In mid-1967 the International Automobile Federation (FIA) announced that it had decided to modify the regulations pertaining to the Sport Prototype, Sport and Gran Turismo categories. As a result, the World Brands Championship was on the brink of the greatest crisis in its history.
Many were the voices of protest that were raised then against the decision. The FIA banned large-displacement vehicles, stating that Sport could reach five liters, but with a minimum production of 50 units per year (this figure would then drop to 25 units), while Sport Prototypes should not exceed 3000 cc. Only the Gran Turismo could use large displacement engines (up to 7000 cc.), But these never participated en masse in the tournament.
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