I'm also quite late - in my defense, I just subscribed to the group today.
I drove a '96 NA as my only vehicle for four years in Minnesota. The old
hard tires it came with were awful, almost zero traction, but I still made
it thru the first year. (Earlier I'd driven an '86 Corvette thru a winter,
much the same.) The next spring I bought a new set of decent tires (not
snows) and they were much much better in the winter. Still a light
rear-drive car, but perfectly workable most of the time.
Heater, starting, and everything else, no problem at all. Mine was garaged
so I seldom dealt with scraping snow off, can't speak to the rear window
Just bought a 2003 NB last fall, but it's a play car and won't be doing