Yep I have Goodyear 235s on the rear and no they won't fit without trimming. Its the camber shims they put them out about 20mm more. A 215 may be ok though.
The dia of the 235 is alot larger it's not just the width that puts the rears right up to the front of the arch. I could try a front which is a 215 on the rear and see how close it is if you like?