you can't to my knowledge.
check them out on the garage at gta4.net.
mods.
you can't from what i can tell
you probably should look into mods.
try the gta place
check gta4.net's garage.
there is no mods in gta 4 but for gta sa the spanner icon on your map
go in to mod folder and click on start
With the right stuff, yeah
No gta4 is only for x box 360 and playstation 3
You have to install mods in order to customize character appearances.
No, no, no. You can't get mods for the 360. You see, mods are for computer only. Now, if you're an experienced technician or you buy some certain stuff, you can download mods onto your PC and emulate them onto your 360. Some people know how to take apart a 360 and insert a chip or something that plays mods. Otherwise, there's no such thing as mods for a console.