@IShadic I can't say I've experienced the same thing in terms of difficulty swing with the AI. 94 seems to be the sweet spot for me. If you're constantly having to change the AI by as much as 10 points then you are either not getting the setup right or you are better at some tracks then others.
I'm not sure what you mean by a togglable option for 2 handling styles? If you're suggesting that they implement two different handling models into one game that's not really feasible. There are patches coming to tweak the existing one, but there's so many things tied to the handling model like AI logic and tyre wear having two isn't practical from an implementation or an upkeep standpoint.