You don't as there is already a modding community - but I cannot say much if you're using the console versions.
Magic!
No, you can't mod GTA 4.
You can only mod cars on the pc version of the game
its a mod, no cheat
No, there is not a Ford Mustang in GTA IV. You can mod your car using a computer to get a Mustang but otherwise there is not a Mustang in GTA IV.
Illegal and will not answer.
yea u can be for sure...
No, i wish though.
you have to mod it if you have pc gtainstide.com
no, it's the police force in the game.
Type in the Nico's phone 087745550973
mod indirmek lazım