Ammu-Nation Delivery Trucks
As soon as you gain access to the services of Ammu-Nation (completing the 'Pimp His Ride' mission), trucks with a characteristic blue star appear on the streets . These are the Ammu-Nation delivery trucks. Now nothing (maybe apart from closed doors) can stop you from hijacking the vehicle and stealing its cargo.
The truck driver is one of your toughest opponents in the game. He's armed with a deadly long-range shotgun and wears a bulletproof jacket. The best way of luring him out of the truck is to drive by its side and rake it, stopping only when the driver jumps out of the damaged vehicle. Now you have three choices. It would be perfect if you could run him over and park elegantly . A slightly worse solution is to shoot at him from your car. Your third option is to draw him away from the truck, leave your automobile and run to the abandoned vehicle.
After you're done with the 'Carpe 'Dime' mission, drug dealing gangsters appear on the streets in their cars . Unlike before, hijacking one of them is a piece of cake. The doors are not closed so you can throw the driver and the passenger out of the vehicle at any time. You can also block the truck with your car. As soon as the gangsters get out of the vehicle, pump them full of lead.
When the hijacked vehicle reaches your secluded hideout it's time to cut the metal with a burner (Ammu-Nation) or rip the car door in order to find the cubby-hole (dealers' trucks). In the former case you have to remember that each time you open the truck, several clips (or items) of one type fall out. In the latter you ought to realize that stealing trucks packed with hot stuff is not the most lucrative job in the world. It often turns out that the cubby-place is empty and your efforts go down the drain.