It was -31 this morning, -41 with wind chill in my town today. That is really cold. My vehicle even with the engine getting to operating temp will not fully warm up in the interior, unless I drive around for about 30-45 minutes, probably will take longer. No vehicle will...in these temps. 
 So what do I do ? I dress warmly. Heavy parka, heavy layers underneath, real winter boots, Mountie style trapper hat if needed, lined on the inside, heavy hide 'garbage' mitts, etc.
 I'm wondering why  the 'cold' at just above or just below freezing temps, is an issue ? :D