I like the idea of refilling your tank aswell. And btw getting out of a car and jacking another is NOT EASY when theres 15 cops on ur rear bumper and another 30 on your rear view mirrors. Jacking cars is not as simple as it was in GTAIII. By time you stop your car (good luck not getting trapped by NOOSE) exit, make a run 4 another car, try to open the car door (and fail), break the window, open the door (and succeed), hot wire the car, turn on the engine and accelerate outa there, 41 Cops, NOOSE, FIB, random peds/gang members, and security gaurds would've killed ur ass in the drivers seat. And dont forget you cant switch cars in alot of missions.