ronk said:The same reason there are laws about crash helmets and seat belts! Some people have to be protected from themselves.
Winter rubber is designed to perform at 7deg and below - ie most of the winter on mainland UK . You don't say where you live?
It brasses me off when I get stuck behind somebody in the snow who is ill equipped for the coditions - there are penalties in Germany for causing problems like that.![]()
I live in North Wales,
It doesn't sit below 8 for long and I can only remember one year where the snow stuck on the roads.
Mostly it sits around 10'C and is damp. For winters to out perform standard summer tires the temps need to be below 7'C. Compared to the Michelin PSS I imagine the gap widens.
I don't think it's severe enough to pass a law requiring winter tyres. I expect low grip in cold conditions and drive accordingly. Having the rear end flying around on warm days is something more likely to put me in a ditch!
