I have fairly wide tread width (but not the widest) 215/40s (Federal RS-RRs) on 17x
8/42ET wheels at
factory ride height/stock suspension, and they have never ever rubbed even once, under ANY conditions/scenarios.
I DO wish that they did not look so 'rubber-band'-like in side wall height, but still
much better than a fully stretched out 205/40 on an 8" wide wheel for sure, which results in a coating of rubber on the wheel rim type appearance LOL.
Going to a 215/
45 is
really pushing it, tire height/rubbing-wise, even at factory ride height.