NASCAR 08 Cheats
EA Sports Car
In earn your stripes mode enter the following first and last name.
Code: EASports Car
Wal-Mart Track and Car
Go to earn your stripe and enter the following first and last name.
Code: WalMart Everyday
Go to the cheat code menu and enter "checkered" as a first name and "flag" as a last
Code: "checkered flag"
Pole position for Daytona and Talladega
Once you have qualified for a Daytona or Talladega race, turn off the braking assists. This will allow your car to reach maximum speed, resulting in a pole position every time. It should work in every race mode.