I sure love having to fix mistakes made by TDM where I can... For example, I found out his textures for the grille on certain cars was entirely wrong, so now it looks much nicer.
His:
Mine:
There are plenty of other changes I wish I could do, but some are more practical than others.
I'm reminded why I probably stopped doing this process, it takes forever and is incredibly boring, as not all cars are set up the same way nor can I copy paste settings and have it be reliably good. That being said, progress there is being made.
Looking at cars again... Was I drunk or something when I did materials before (not paint jobs)? They're all incredibly shiny. How did I find them acceptable at all? Time to redo.