got 17's on mine, scrub like a washer woman and sit nicely under the arches, tyres are a pain to buy, and handleing isnt that bad (but i've never driven it on 15's)
having said that... i now have a set of 15'' ats cups int he garage waiting to be cleaned and slapped on it at the weekend, so i'll soon tell you what i think...
oh yeah, mines lowered (alot) and has had arch work... still scrubs!