What do you think? Best outside car storage for this winter

Did it a few years ago, much like you, with no choice.

I didn't put a tarp down under the car, just had the car cover over it.

I was sorry, as the wheels took a lot of time to clean up in the spring. Other than that, everything was fine.

Of course, I always throw moth balls around on the floor, just to prevent any mice from liking the environment. I do that whether it is inside, or outside.