Nothing to stop you and car is relatvely practical for a Morgan! Aeros drive well in snow and rain, and don't suffer aquaplaning badly.
Suggest you bear in mind:
1. Mileage affects value (even though the mechanicals seem tough).
2. Salt is not a good combo with ally and Morgan paint, nor good with chrome - door handles would deteriorate quickly.
3. Relatively little ground clearance for poor roads or deep snow.
4. Snow might get stuck in wheelarches.
5. Wipers are pretty hopeless under extreme conditions.
6. Most cars leak in some way.
7. -35C is very cold and would probably throw up issues that the relatively brief testing programmes of a Morgan might not have shown up.
Why not keep a little extra car (Fiat Panda 4x4 or whatever) for when the weather is particularly nasty, and help to keep the mileage down?
I admire your interest and idea, and you'd certainly enjoy driving the Aero - it must be almost totally unique in Poland. I was in Krakow a few weeks ago and imagined driving around in my S3. With all those pretty girls to impress I wish it had 4 seats so I could collect more of them at a time! (Wishful thinking sadly).
