Select the Gold (Hard) challenge for Follow The Leader. When the race starts, find the best spot to ram your car into the wall (head-on works best). You have to hit hard enough to destroy the suspension or you will get a "Failed" message, saying you hit the wall too much. If done correctly, you will pass the challenge. -From: Tribal
When qualifying for a Daytona or Talladega race, turn off braking assists. This will allow your car to reach maximum speed, resulting in a pole position every time. This works in all race modes.