I remember a video of extreme conditions testing Porsche enginneers put the boxster prototype through. I realized then that the car was really made to handle almost anything. Good for them. What else would you expect from a Porsche? I think about that still when I get funny about driving in the rain or any kind of pampering. My suggestion to your dilemma is to get rid of whatever you can. If you don't do it now, you'll wonder why you waited so long when the time comes that you do.

The weight of the snow isn't an issue. But, the snow doesn't allow the car to breath and the dampness can cause issues. I used to store my car outside under a cover and it is important to keep the snow brushed off the cover.

My wife is also really helpful with that kind of advice! :-)

Time to put some overhead shelving in the garage. Some 2x4's and some plywood - get the basement stuff up off the floor.

Might also be time for a small backyard shed.

Mine spent one winter in an unheated storage unit for $90 a month. Northern IL hit -20 that winter. No real issues, my 5 yr old battery gave up the ghost because I had no access to electricity. I found heated storage for $65 a month the last two winters. We have a 2 stall garage and 5 cars ... the Box spends the summers in the garage. I went the yard shed route for the mower / snowblower / etc. I just can't bring myself to drive it in the slush and salt we have around here.