Enable Cheats:
While in the game push ENTER + SHIFT + ALT + E.

Codes   Result
    
4x4    -Big tires
5x5    -A big truck
99x99  -No game over 

1 Million Dollars:
For 1 million dollars, druing the game play type in goldfinger you will a noise to tell 
you it worked then type in givememoneyordie.