There are Pay N Sprays in GTA IV, but they will only change the colour of a vehicle. There is no equivalent of Transfender, as in GTA San Andreas.
There is no such thing as a Hover Car for GTA IV. It could be a mod or someone has told you false information.
The bodyguard is a Mod that has to be downloaded
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.
This site seems to have a tutorial. See if this will help:www.gtagaming.com/downloads/installation-help
Modding on the GTA IV means adding or editing things within the game. This is illegal.
Ratman does not exist in GTA IV, it is a myth. I do not know whether a mod has been created for him, sorry.
Vehicle mod is modifying the appearance and handling of the vehicles you see and use in GTA IV. You can for example switch the banshee with a BMW Z4 or the Blista with a GOLF GTI :) Greetings
There is nowhere in GTA IV that you can purchase a vehicle.
Apparently the Infernus in GTA IV is based on the Lamborghini Murcielago / Pagani Zonda.
If you are talking about LCPD:FR or Police Pursuit Mod, then no. The Xbox 360 and PS3 are unmoddable. If you'd like to be a Police Officer in GTA IV then buy the PC version. :-)
Yeah because i got some o gta IV
you can't get in planes in GTAIV but you can get in helicopters, the same way you would get in a car.