Go into Exhibition mode and select Driver Williams. Using your Control Stick, edit his last name to "Pyrite." Exit all the way to the Start screen, then re-enter. A new Gold Driver will be available in Exhibition, Time Trial and 2 Player mode.

Go into Exhibition mode and select Driver Williams. Using your Control Stick, edit his last name to "Vacation." Exit all the way to the Start screen, then re-enter. You'll find a bonus track after the European Grand Prix.

Go into Exhibition mode and select Driver Williams. Using your Control Stick, edit his last name to "Chrome." Exit all the way to the Start screen, then re-enter. A new Silver Driver will be available in Exhibition, Time Trial and 2 Player modes.