At the beginning of the 1970s, national motorsport was divided into categories, with the emergence of Division 3, which allowed a high level of modifications to the bodywork, a highly prepared mechanical set and tires from Formula 1 or Formula 2. They achieved around 450 hp and reached speeds of around 260 km/h. The grids were packed, subdivided into three classes: Group A, Group B and Group C. All Brazilian-produced cars were allowed to take part in the races, guaranteed fun for the large crowds that filled the racetracks.

At the beginning of the 1970s, national motorsport was divided into categories, with Division 3 appearing, which allowed a high level of changes in the body, in the highly prepared mechanical set and tires from Formula 1 or Formula 2. They reached around 450 hp Speeds of up to 260 km / h were reached. The grids were crowded, subdivided into 3 classes, namely: Group A, Group B and Group C. All cars of Brazilian production could participate in the races, guaranteed fun for the general public that filled the race tracks.