I don't think IV will be the same as other GTAs, where you jump out of your car, go into another one, crash and burn it and rob another one. Your cars are going to have more value to yourself. In the second trailer, around the 42nd second, Nico strafes with a gun spraying in his hands. He has a pouch around him and the trunk open behind him. Could this mean that you pressing R2 isn't going to automatically put a Rocket Launcher in your hands? Maybe inside that pouch he has some cash and a Pistol, and maybe he has a sniper in the trunk. Picture this, you can only have a pistol on you and one primary weapon. Any other weapons you have to stash somewhere in your car, hence the trunk or the back seats and so on. That's why I think cars will have more value to you, because you don't wanna jump out of your car, break some dude's car's window, throw him out and kill him, then move ur stash into the next vehicle. Or you don't want to lose your collection of weapons because you drove your car full of weapons on a ramp and then flipped it, and eventually exploded. he might be able to carry around a bag to put his stuff in. All I am saying is that the guns and cars have more value to you, and pressing L2 or R2 (or w/e they press on other consoles) is going to magically put a Rocket Launcher in your hands. You're going to have to run to the back of the car, pop the trunk, pull it up and shoot whatever u have to, throw it back in the trunk, shut the trunk and then run to your drivers seat and DRIVE AS FAST AS YOU CAN! Now that would be fun.