For Roy and Turkish -
This is exactly my point, so many other variables that factor in with driving, which makes winter tyres look rather insignificant now to me.
I appreciate what you're saying. I'm not on a crusade to make people fit winter tyres, it's just a shame europeans seem better educated than ourselves.
IIRC winters drop 20% off your braking distance in snow and about 13 in the cold/wet. No matter how cautious any of us our that extra margin and grip/ability to change direction is pretty handy when conditions are poor and we're sharing the road with a bunch of complete weapons who may do something stupid in front of or while traveling towards us.