Stay on the road as long as possible without crashing into another car. For each car you leave behind you, your score is increased by 10 points.

You have three cars. If you have crashed all of them the game is over. Your car has a limited amount of fuel only. On the upper right of the screen you can see how much fuel you have left. Make sure you refuel your car soon enough. To do that, you first need to get some money from one of those cash dispensers that appear on the left side on the road from time to time. Then you can drive to the right side of the road and stop for refueling as soon as a gas station appears. You earn 45 extra points each time you get money and 55 points
each time you refuel your car.