I just came across something odd today. I have a 'rallycross' layout that is based off of Aston Cadet, and when I tried to use road tires on it, it gives me the "Road Tires on a Rallycross Circuit" warning. How does LFS know that it's a rallycross layout? Does it determine it 'on the fly' by analyzing where competitors go? The only things that I could think of that give it away are the server name ([SimRS] Rallycross) and the layout file name (SIMRS_RALLYX).