We have a 2010 Mk5 Polo which was factory supplied with optional VW 17 alloys. Due to the imminent arrival of a new Mk 6 Polo we have passed the 10 model to our son in London. However this is entirely unsuited to 17 alloys due to the dozens of sleeping policemen covering all his local roads. So switching to 15 is the only way to go, however good looking the 17s may be! Tyres are Dunlop Sport Maxx 215/40 R17 with two in good condition but the other two need replacing. Let me know if of interest.