Como desbloquear os veículos secretos no NASCAR Rumble (PS1)

NASCAR Rumble is a racing video game created by Electronic Arts for the PlayStation. The player races through 18 courses set in six different areas collecting power-ups along the way. The game is a departure from many NASCAR games, as it is an arcade racer featuring various tracks and power-ups. A non-NASCAR licensed sequel was made for the PlayStation 2, called Rumble Racing. There are drivers from the then Winston Cup Series and Craftsman Truck Series, as well as legend racers and bonus vehicles.