Recommended installation via > GTA IV Vehicle Mod Installer <
Installation via SparkIV and OpenIV:
SparkIV: 1) Before installing, make a backup (backup copy) of the file. 2) Use SparkIV to open vehicles.img (GTA IV/pc/models/cdimages) 3) Press import and replace the standard comet.wft and comet.wtd with files from the 4) Save changes (Save).
OpenIV: 1) Before installing, make a backup (backup copy) of the file. 2) Run the OpenIV program. 3) Go through the program to modeles/cdimages/vehicles.img 4) Replace comet.wtd and comet.wft files with identical ones.