The potential of Assetto Corsa as a rally sim?
FPS isnt high enough to portray the best sense of speed and it obviously needs some work with texture resolution, lighting and especially the frying pan sound bytes of the stones hitting the underneath of the car, not quite up to competing with RBR yet but the physics seem to be on the right track, I like the brake squeal too. Wouldn't take too much to import some Grp4 Mk2 Escort skins, interior and a screaming millington sound bytes.
https://www.youtube.com/watch?v=yz7kmlKbHQM