[8bitsrule]

Where I grew up, each winter there were a few days that started at -30-40°C. Walking is not too bad (in the squeaky snow) because usually there's NO wind. Cars usually had (plug-in engine-coolant) 'tank heaters' and battery trickle-chargers to keep engines startable.

But there were plenty of snowmobile riders in the area. Some of them who bundled up and attempted to ride at these temperatures learned that their lungs did not work well after a short time.