Originally Posted by andyd

180, this week in Hertfordshire we had snow one night, about 3cm, and the whole of the county ground to a halt!!

Admittedly over here we don't have a clue what snow tyres are but, in all fairness, it's not worth losing the added performance or cost for the one week a year we would use them! (I did get stuck in a cemetery yesterday and had to get pushed out by the grave digger :-) )