Go to practice mode, select a track, car, and transmission
How:
When the race begins, turn you car around and drive in the opposite direction. When you pass the first check point, you will be placed in first place. Then, the other cars will eventually turn and follow. Three new tracks will now be accessible
Enter practice mode, then select a track, car, and transmission. Turn around and drive in the opposite direction when the race begins. You will be placed in first place after passing the first check point. The other cars will eventually turn and follow. Three new tracks may be raced by this method.