I have fully insulated garage doors, but lately the temps have been dropping to the low 20's and sometimes lower at night. My garage is currently in the low 50's. Not bad considering the outdoor temp and the fact that every time I open the garage to drive in or out, it lets that extreme cold air in, but still cold to work in. Has anyone tried using their Tesla as a garage heater... leave it plugged into the charge port, open the doors on one or both sides if you can do both and turn the heater on full blast? Has it heated the garage very well? Did it seem more efficient than buying a little space heater? I have a 2 car garage but only one vehicle and the other space I plan on turning into a work area. 50 degree temp is not fun when you are trying to do precision things that require uncovered hands/fingers.