Burnout
Ending bonuses:
Successfully complete the game to unlock the Free Run mode (no vehicles on the road), Free Run Twin mode (two player Free Run), and Credits options.
Face Off option:
Successfully complete championship mode once to unlock Face Off 1 against the Roadster.
Roadster:
Defeat the Roadster in Face Off 1 to unlock it and Face Off 2 against another car.
Towtruck:
Play in championship mode until you unlock Face Off 2 in the special options screen. Defeat the Towtruck once to unlock it.
Saloon GT:
Defeat the Saloon GT in Face Off 3.
Bus:
Defeat the bus in Face Off 4.