It's called Chop Shop, and it brings some car customization functionality to GTA IV. You can recolor your car, modify detail, create special finishes, and modify body type. You can use it to create custom bikes, and it works on helicopters and boats, too.
Everything in the mod is functional as of now, I'm currently cleaning up the code and keybindings - I hope to have it finished before this weekend.
To install, copy the .lua file to your \GTAIV\Alice\ folder. The script will automatically be enabled with the game starts.
After starting the game:
Hold SHIFT and press the DOWN ARROW to cycle through available components (colors 1-4, and car body type).
For most vehicles:
Color 1 is the primary color.
Color 2 is the secondary (detail) color.
Color 3 is the specular color (change this to create pearlescent finishes, etc).
Color 4 is usually unused, but on some vehicles will change minor details like rim or tire wall colors.
When Colors 1-4 are selected:
Hold SHIFT and the LEFT or RIGHT arrow to cycle through colors for the selected component.
Hold SHIFT and X to RANDOMIZE the currently selected component.
When Body Style is selected:
Hold SHIFT and the LEFT or RIGHT arrow, or SHIFT and X to cycle through body types randomly.
a. Since the body styles are selected randomly, it's possible to get the same one twice in a row.
Edited by chamber, 22 April 2009 - 06:36 PM.