Unlock ALL Track And Cars:
This is a great cheat which is activated by going to the Main menu and pressing Right, Right, Left, Square, Up, L2, L2, R1.


Unlockable Cars

Unlock ALL Pro Class Trucks:
In Single Race mode complete the first 9 races.

Unlock ALL Unlimited Class trucks:
In Single Race mode complete the 27 races.

Unlock Monster Truck:
On the hardest difficulty setting complete ALL the Single races.

Unlock Rod Hall Hummer:
In ALL the divisions of Career mode Come in 1st place.

Unlock Shelby Dodge Durango:
In Career mode come in 1st place in the Speed Division.

Unlock Dodge 6x6:
In Career mode come in 1st place in the Power Division.

Unlock Monster Truck

In Single Race Mode, on Hard Difficulty Setting, complete all 36 tracks.