To be fair, I've never driven my IS, or any other RWD car, in the snow, so I'm only going assuming it's gonna be as crap as the other beemers and mercs that get stuck where I live (unless they are particularly shite drivers, although my neighbour is from Hungary, and even he can't move his Merc in the snow - and being Hungarian he should know better!), but first impressions of the winter tyres on my Lex are very good!
Shame I didn't even need to go out this morning, and only did to see how they coped