Activating this trainer:
Press F1 at main menu.
Listen for 'Trainer Activated'.
Press desired hotkey.All hotkeys can be changed on the trainer.
NumPad1: Infinite Fuel
NumPad2: No Damage
NumPad3: Change Money By 50000
NumPad4: Change EXP By 5000
NumPad5: Unlimited Skill Points
NumPad6: Super Speed 4
No Damage: Before deactivating this option please pause the game by pressing ESC. Otherwise the game may crash.
Money: To add/edit your money you must be ingame and driving a truck.
EXP: To add/edit your EXP open your progress screen first, then make changes.
Unlimited Skill Points: You must have at least 1 skill point. Go to attribute page and activate this option.
Then you can spend as much points as you want, press apply. Deactivate this option. Please note that after you do this it will set your skill points to zero but the attributes stay unlocked.