Summer tires in Winter

[j.fro]

Get hooked up with the local Porsche club, SCCA, or other organization that holds autocross events through the cold months. Take your car to one of these and find out safely just how your car behaves with the summer tires in cold weather. If you've gotta use the summer tires this winter, this will help you understand the limits.

[stephen wilson]

I've run my PS2's the last 2 winters with no issues. I just treat is like a motorcycle: never with any moisture/frost on the ground. You just have to respect the lower limits, which with these tires is still greater than most of the cars around you.