I know live in an area where I will have to plug my car in during the winter. It will get below zero in Anchorage for a quite a while. That will be a new experience for me. Cars are equipped with a block heater that you plug in generally during the night. Up in Fairbanks, many of these plugins are for use during the day. Fairbanks gets to 60 below zero. I am going to freeze my butt at zero, but I just don’t get 60+ below. But, talk to me next spring. I will let you know.