Good timing now that it's starting to get colder.I just put 4 x Goodyear Ultragrip Performance 2's straight onto my 18" Monzas. Drove for an hour at 9 degrees C in the dry and I cannot detect any change in rolling resistance or road noise compared with my Michelin PS3 summer tyres. Very pleased about that. I'll let you know how they do if we get some snow (secretly hoping for a harsh winter!).