I ran the Latitudes in the snow a few weeks ago, they were fine. Personally I've never had any issues with a wider tire in the snow, not a big fan of the pizza cutter setup myself.
Originally Posted by clinkinfo
There are a few other DWS reviews, seems harder to find people using latitudes on the 20s.
09 135i 6MT, ZMP, PPK1
13 X5 35i ZMP, ZMX, 2VA
13 Tiguan SEL 4motion