I am from West Virginia, but now live in Michigan. Personally, I would not drive a Crossfire in the winter if at all possible.
If you must, you should probably get a winter wheel/tire setup (most likely 18" wheels w/snow tires all around, just be careful about brake clearance as the SRT6 has huge brakes).
These cars are VERY low and have huge wheels (as I'm sure you've noticed). I don't think a Limited w/a manual trans is going to do much better in inclement weather than a SRT6.
If you can have a 'winter beater' of sorts, I would recommend keeping it. Others though, drive their Crossfires all year round.

Good luck.