So i had some Dunlop Wintersport M3's mounted on some stock 18's last month, and i must say, even lowered, the car drives like a champ in snow. i wouldn't go take it out in the middle of a blizzard, but it does great in any snow covered road/snowy slush aftermath.
we got a foot or so of snow last night here on Long Island and here is my car at work, nice and filthy!