LOL!
This is what we do to keep our vehicles clean, safe and away from corrosive chemicals dumped on our roads 3 inches thick:
1) we drive ourselves and our SUV to Florida for a big chunk of winter;
2) we store the other vehicle & camper in a climate-controlled facility until winter is over (up here: 6.5 months)
...additionally, I flood the undercarriages and inside body panels of both vehicles with anti-corrosion materials several times a year. I drive to get groceries locally ONLY on days when the roads are clean and dry (usually, about one or 2 days every two weeks); we don't visit anyone during the period when we aren't in the south, they come to see us.
:B :B
My advice: IF you have to actually drive "a vehicle" during winter up here in the corrosion belt (to get to office; shopping; visiting; etc), buy a crappy 4x4 you can afford to sacrifice.