This is a simple traffic loading fix, for people who have modded cars and get the issue of always the same car appearing. It is also a welcome addition for people who wish to have more diverse traffic.

How this mod works and further things you maybe would like to know
This fix randomly loads any car into the memory. After 26 car models are loaded it tells the game to mark ALL cars as unneeded if they exist. This causes the game to unload any cars which aren't on screen anymore. After that, it randomly loads 26 cars again. This process repeats the entire time the game is loaded. Each cycle takes roughly 30 seconds, but you won't notice anything. Just give the script some time to load, after 1 minute after loading a savegame traffic diversity is constant.
Busses and taxis however do not participate in the cycle. They always load no matter what has been chosen, they just load. Busses appear regulary and all taxi variants appear in a good mixture.
This way of loading offers far more diversity than older methods. Cars which aren't loaded normally appear in traffic. Sports cars load sparingly, but they all load. Even the Infernus and Comet load. You won't notice repeating cycles anymore consisting of 30 different cars, all 84 cars (excluding service cars and taxis) are loaded.