I have 20+ cars that need tire textures, so I prefer to get it right the first time. My idea is to make a tire marking that makes sense (not just random letters). I understand FL, FR, RL and RR but of course it's useless for obvious reasons (just one tire texture per car). I sometime see a colored circle, which I guess it's color-coded compound like F1. But I'm just guessing. The markings must be generic enough to be for the 4 different textures available on DR: tarmac, tarmac wet, gravel and snow. Also, there's a time span of almost 40 years (omg...). For now, I'm starting with the Impreza WRC2001-2002. This is what I made so far without any knowledge of the markings, basically I invented mine... Ideas?