Late to this party, but another data point:
When I got the car in May, I immediately swapped off the stock tires (sold them to local ST owner) and got
General G-MAX AS-03s. I bought mine from Discount Tires.
I would not drive them on snow or ice, but I have winter wheels/tires on our other vehicles. When it's really cold (icy) or there is snow on the ground, this car will stay in the garage. Not going to even buy chains for this car (all our cars have had chains for the past 20+ years, so that's a little bit of change for me).
These were fantastic plowing through standing water about a week or so ago on SR 520 near the Redmond MSFT campus. Everyone slowed down from 60 to maybe 40, and the water was just flying off wheels. Car was planted. Handled and stopped very smoothly. These pump a ton of water. So really great 3-season tires for wet climates. They were fine for the few summer drives I took on this car. But I would not use them at the track unless there was torrential rain. Then again, I'd just probably drive home and write the day off in those conditions.
BUT: in Michigan, if you must drive this car in the winter, I'd totally agree with folks recommending dedicated winter wheels and tires. There are bunch of options is the skinny, smaller wheel sizes. And skinny, of course, is good on the snow and ice.