Another great option for winter storage is a car jacket. Google it. It will cost you about $125 if memory serves me right. The good thing about the car jacket is that it's like a sleeping bag for your car. You litterally drive your car onto it, fold the top over it and zip it up all the way around the car. This keeps the critters out.

The jacket comes with some "dry sweep" to absorb moisture while it is sealed up. Put one pan of it under the car, and one pan of it inside the car. Leave the windows cracked a little too.

Of course, you can leave the zipper unzipped a tiny bit so you can run the power cord in for your trickle charger on the battery.

My car jacket has kept my Crossfire critter-free for three winters now.

Oh yeah, before I forget, go to the hardware store (Home Depot or some such) and buy some of that pink foam insulation - not the fiberglass stuff you put in your attic, the stiff styrofoam-like sheets that are about 2 to 3 inches thick. Buy 1/2 of a sheet and have them cut it into four 2 foot by 2 foot squares. You'll put those under the tires when you park it. The easiest way to do it is to drive the car onto the car jacket almost all the way, get out, stick the styrofoam "boards" under the front edges of the tires and then drive up onto them. This, along with putting a few extra pound of pressure in the tires will help them not to develop flat spots over the winter. The alternative is jacking the car up, and that's a pain in the rump. Plus I'm worried that I'll damage the car somehow having it on jack stands all winter. (I know, that's a weird unreasonable fear, but so be it.)