No Potenzas. I ditched those last year and got some Pirelli PZero Nero all season tires. Work great in snow, but nothing works on pure ice.
FYI I found that the Pirelli's worked well for a season. I had my dealership swap them with the stockers when I first got the car. However this season they became almost useless given treadwear. Funny thing is that the tires are rated for 400AA but they are wearing like they're under 200. I only see having them another spring/summer/fall and then they'll be spent. Only have 13000 on my MS3.
Got some Firestone Winterforce on steelies this year and I've been very happy with them. They handle snow really well and are horrible as far as sqirm. You only start feeling their soft sidewalls at highway speeds and aggressive maneuvers in the dry. I run them at ~38 psi.