Installation: Open the IMG Tool file "GTA3.img" (which is in the models folder), find and replace the original files with files from the archive, then open the Collision File Editor program the "vehicles.col" file (which is in the models\coll folder), find the original collision and replace with the one in the archive. Now, with a notepad, open the files "default.ide", "handling.cfg" (which is in the data folder), in any order, and change the original settings to those specified in the Readme.txt file