Castellioni want to own the city, but the problem is that he isn't the only gang in the city. There are others that share the same passion. He needs to get rid of them and as one of his henchmen, he ask you to do it for him. Drive your car slowly on the road. Eliminate any threat that are trying to get rid of you. Complete the mission and get out of there. This might look like a lot of gangster game out there, but this one requires the use of fuel and you can also continue the last scene by paying for it.