Unlock Photo Gallery, Concept Art, Pre-production Gallery and Credits:
By successfully completing the story mode.
Unlock all circuit racing:
Cars by successfully completing the game with an "A" rank in all levels.
Unlock Extra Options:
By finishing first in all of the circuit races.
Unlock All Stunt Courses:
When you start the stunt course only the first track, Warehouse, is unlocked. To unlock the next tracks you need to complete the subsequent course.
