Ooo-ooo-ooo: So I grew up in Fairbanks, delivered papers on foot year-round, coldest day was -65°. That's pretty cold. A tire fell off a delivery truck that day, broke when it hit the ground. Yeah, old tech probably. When I was in the Army in Germany, I had a Renault R10, fabulous car, great in the snow. One time I drove down to Davos to ski. I was a poor and penny-pinching soldier, so I spent the night in the car. It was -53°F. I had a North Face down bag with ~6" of loft. I don't think anyone makes anything like that anymore - quite light for what it was - the baffles were mosquito netting. Anyway, had a fine night. The trick is to hold absolutely still. In the morning of course the car wouldn't start - battery way too cold. So I walked into town to a service station, but no luck. The fellow told me they had a backlog of about 100 cars or so. So I walked back to the car and noticed that I was parked in a turnout and it and the road had a slight downhill. So I pushed like crazy, jumped in and put it in 2nd gear and . . .it started right up. I did go skiing, did 3 runs which involved 3 long chairlift rides and that was plenty. Didn't frostbite anything. A lot of that is knowing how to exhale. War stories.