Pause the game and type:

Code:                Result:
 
hardtruckisthebest   Money and License 
wininalottery        Money and License 
openallroads         Opens All Roads 
advancedmap          See Hidden Containers on Map
freerepair - Press Backspace for Free Repairs 
freerecover - Press [Ctrl] + 5 for Free Recovery 
fillup - Unlimited Fuel