Unlock All Opening FMV Sequences:
Select Features at the main menu.
Select Create-a-Car, then enter the following name:
Seymore Cameos - Unlock All Opening FMV Sequences.
Unlock All Create-A-Car Sponsors:
Win the Winston Cup in Career Mode.
Unlock Paint Schemes:
Win a race on either Medium, Hard or Extreme difficulty.
Unlock Special/Alternate Event:
Win a race at a specific track on either Medium, Hard or Extreme difficulty.
EA Bio Extras:
Reach Level 16 to unlock the All-Star Race.
Reach Level 18 to unlock the Bud Shootout.