This is the usual Diablo Stallion, but with one change - the ability to recolor. There is both a regular PS2/PC model and an XBOX version. I had to change the model quite a bit in order for this seemingly simple function to work. Didn't seem to find any bugs.
Installation: replace the files from the archive in gta3.img and add color options through notepad in the carcols.dat file. Example: diablos, 0.0, 56.75, 75.79, 13.76, 44.27, 67.77, 55.52, 21.26, 74.15