Please elaborate. Having more detail is always a good thing. Specifically: More detailed description.
To access the game's debug menu, start a race with the Pro Action Replay codes 028C3B80 + 028C3C2C active.
Among other things, this menu allows you to play a race on any track with any car, and view tracks and prerecorded demos. To return to the normal game, disable the codes and select "exit".
