The first time I visited Thunderbay (North shore of Lake Superior) I was amused by an electrical outlet for every hotel parking space. Had occasion to rent a car there once in January, the rental came with an extension cord in the back seat. Actual air temp was -40.

My friends there take it in stride.

My car shows a block heater on the paperwork and K05 on the GM VVS sheet too...

Most modern extension cords freeze into a near solid stick around -30, adding to the fun.
But injected cars start waaaay better in the cold than the old carbs !!