I'm down in Norwalk, seems to be lots of these cars in this state.
We just got ours in August, with the sports package, and I can say without any doubt what so ever, it is absolutly the worst driving car in snow I have ever driven with those tires on it. We also have a Saab that eats snow for breakfast that we took on all the snowy days this year, but if you go sports package, then you will absolutly need another set of wheels and tires for the winter. We will be getting another set this summer, the car is insanly bad in snow.
Besides that, if you look at the sports tires wrong they go flat. Hit a pothole (not sure where in the state you are, we have a zillion down here), ruin the tire. We are on our third right front tire from what a regular tire would be able to handle. We figure with the savings in tires alone in the winter we will pay for the rims at least.
Don't get me wrong, we totally love the car, just took the hard top off Saturday, but in snow, any amount at all, you will probably need 4 snow tires.