Since I know y'all are waiting for my input here ya go:
Using up a nice, let alone collectible, vehicle for salty winter abuse is IMO criminal.
Get a sacrificial beater, do whatever preventative (like oiling it up) measures so it has some lifespan & repairability, and use that.
Like Neil says, even the de-icer in areas where salt isn't used is hard on stuff.
Some undercarriage fasteners on my old Breeze were essentially welded on from corrosion after 18 Idaho winters.
The FWD was great with winter tires, up until the front bumper would become a snow plow @ 5" of snow.
Agree, the GM 3800 is good. And there are plenty of older non-collectible Japanese cars & SUVs, too.
Another factor is who's gonna slide into you.
I used a 2000 Taurus one winter - cheap, relatively common a few years back, and anonymous & disposal enough to never worry about it.
That said, in freezing temps, the door latches would freeze up...