Rfactor2 doesn’t have great attention here in GTPlanet as other pc sim like AC and pcars. Maybe because it doesn’t have a brilliant next gen graphics, but in terms of physics and ffb has has by far the best and advanced physics/tire model/ FFB in the market and the AI is simply in another league.
It has fantastic DX11 graphics, in my opinion. Also has weather, brilliant night racing and driver swaps.
It is my favorite sim.
I've just bought the endurance pack all are very impressive but the BMW stands out.
The Porsche RSR has monstrous audio and is quite possibly the best recreation to date.
If you have a PC, I highly recommend any of these cars around the free Le Mans 2017 mod at night.
You can also purchase the cars individually if you don't want the pack.