My experiences:
I don't want to use bigger than 15" in my country due to our not so good village roads.
I've been using summer 205/55 (!) R15 Kumhos on 7,0x15 ET45 (front and rear ET45) Team Dynamics rim and driving my RD Wagon often overloaded. No suspension modifications yet and seems no excessive strain to it due to used very high offset. There were no rubs !!! around *rear* wheels up to now -half a year of almost everyday driving- and only one rub around right *front* wheel after running into big road hole like cross-section caused by caved in gas piping under road (5 meters wide, almost 1 meter long, undulated tarmac-from 10-20cm deep). There was 30kmeters/h speed limit here, I mistakenly ran at 70kmeters/h :blush: Good results at such offset fitted onto Wagon I think.
If most of you say offset 45 is too much for *front* wheels I say it could be even 48-49 without any unwanting rubbing :thumbsup: Well, *rear* should be less than my ET45, but as I've said either on ET45 I've got no problems yet. At that time I wanted to be able to mix them all when necessary.
I've done also little experiments with unusual 215/50 R15 on 7,5x15 ET45 Azevs but unwanted and dangerous steering wheel self-movements appeared. So I rather sold them.
Regards.