Unlock Sly Joker
To unlock a fifth car, the Sly Joker, beat the Pawn, Knight and Bishop series on Standard difficulty.
Unlock The Stingray
To unlock the second hidden car, the excellent Stingray, you have to beat all Pawn, Knight and
Bishop tracks on Expert difficulty.
Unlock Silver Thunder
To unlock the super-fast but a little less stable Silver Thunder car, you need to complete the
Unlock Falcon MK-II
To unlock the Falcon you need to beat the Pawn, Knight, Bishop and Queen series on Expert difficulty level.