My rims just stick out, will try and get a picture, turn in is very sharp but camber settings have a big factor here too Im sure, expect there are others with more technical knowledge, I just know what works for me at my level.
I run a 205/50/15 tyre on track, I have tried 195 all round, and 205 up front and 195 at the rear, I like the 205 all round, I only run -2 on the fronts at the moment as I use my car daily it suits, I will step up to -2.5 soon though and probably leave it at that.
I think the car is more planted with a 195 tyre on a 15x7, but again just me. As for rubbing mine is not that low, 33cms in the top trump calculation, arches are rolled anyway.