The question is how realistic is driving on the limit of any given car in any simulation or racing game, no matter how it feels. If i see vids of super fast software racer, i don't see much realistic car behavior anymore. It doesn't looks very natural and the cars allowing to overcome the realistic level of there limit as it looks like. I actually haven't seen an super driver vid of AC and rf2 but Iracing, what was a joke and leaves a bad impression on me and remembers me, it is just another cheatable game as the most are to some degree. They all have positive and bad aspects, thats life and the more Software.