My condolences go out to anybody who has to drive their Crossfires in the winter. Any rear drive car is at a disadvantage in these type of road conditions. But a light weight, wide tired, nose heavy little beast such as our is even worse.
I discovered with my AMX (a car with similar weight, wheel base, and weight distribution) during the winter of 1970/71 (the only winter it ever saw) that a good set of "tall" and "narrow" radial tires, and two 100 lb. bags of cement in the trunk worked wonders.
If I had to drive my Crossfire in the winter, I would invest in a set of 4, 17" 235x65 series Blizzaks and mount them on some SLK wheels. I know it would look kind of "funky" but so what. It's winter, and everybody's car looks bad in the winter. (Except Andrews of course). I'd add weight, but be careful not to over do it. The Crossfires maximum weight capacity is only 415 lbs.
I think forum member "Bullseye" uses a similar set up on his XF in Chicago as an everyday driver, and he saves his FWD Neon for good weather.