At last, you got accepted to the mafia group after several months of wanting to join. Marconi gave you a mission and that mission is to survive the gun fights on the road.
You need to reach your destination before your car explode. You have a gun and a few dynamite to defend your car. Now, if you kill an enemy, you will their money on the road and you need to pick it up so that you would have the money to buy some new guns and some upgrades to defend your car better. After you finish that mission you will head on to the next mission.