I've had two limited Xfires that I drove all year round in Michigan. Although I didn't have snow tires, I kept a 70lbs sand bag in the trunk for winters. The weight helps and I figure if/when I get stuck, I can use the sand and spread it around for traction.

Well, I never had to use the sand but I was slipping and sliding all the time. It was fun actually, I had a blast driving the car in snow, as long as I didn't need to be anywhere at a given time. I would imagine snow tires would go a long way in helping the situation.

If it was an SRT, I wouldn't even try to do winters. It takes too much to throttle control even in the rain (to some extend).

Basically, my verdict is yes, Crossfires are decent in snow... as long as you're careful and remember there's no defying the laws of physics.
-Az4R1