Many of us in Canada drive our SRT8's year round.
A set of winter wheels and ice and snow tires is an absolute must, though.
Tire Rack has some inexpensive wheels that do the job nicely. My favourite winter tires are Pirelli Ice and Snows.
With 2 sets of tires, each set will last you twice as long!
Here is a great wheel (I use them for racing in the summer) for $99.00.
ASA GT5 Chrome Plated
. . . and I use the OEM wheels in the summer.
There is a sub-forum here on Winter Driving: http://www.300cforums.com/forums/winter-driving/