This is a bit of a thread resurrection from 2012 ( http://www.briskoda.net/forums/topic/226132-anyone-running-255-35-tyres-on-18-rims/ ). I have changed car but still have this on my mind and would have given it a shot by now if it wasn't for all the unknowns. What I do know is that it will be a close call! Talk in the previous thread where someone had managed this on a Mk5 GTI was that the Octavia may have a tad more room under the arches but I don't think so. At least I am only slightly bel