I don't expect Pcars2 to be better than RF2 in handlng, but if it can at least surpass iRacing and Assetto it would be something I would purchase. Definitely won't be shelling out money day 1. If I even so much hear about Pcars 3, I would never buy Pcars 2 because I hate developers that churn crap out. Reminds me of the Madden football games by EA. Every year it was basically $60 for a roster update.
Assetto got it right with the way they do DLC. If people like the product, they will support it. Rfactor 2 may have the worst marketing strategy and business plan of all time.