Trucks must be field tested before they go into series production. In the game Unbrakeable you will be the driver who will have to guide them. A game garage will appear on the screen in front of you. After visiting it you will have to choose your own truck. It will have certain speed and technical characteristics. After that, you will find yourself on a specially built training ground. Pressing the gas pedal, you will rush along a certain route, gradually picking up speed. All kinds of obstacles and traps will appear on your way. You will have to pass them all at speed and not get into an accident. If this does happen, you will crash the truck and lose the round.