Aerial Tricks

Turn off damage in the options screen. While racing, turn around and slam into an oncoming car. You'll do aerial stuff like front flips and barrel rolls. It won't help you win the race, but it's fun.

Play as Davey Allison

Go through the Championship Season and race 50% of Talledega and get in the top 5 you will get to run as Davey Allison.