BeamNG is the reason I own a sim rig and it's amazing to see the progress they make in every release. I do some racing now in other sims but what I was really after was aimlessly driving around for hours as fast (and badly) as I wanted in a wide variety of vehicles. Also in my opinion it has some of the best dirt physics of any driving game. I'm no professional rally driver but compared to my limited experience sliding around IRL in relatively powerful Subarus it feels "right".