If you use a residential charger, Tesla doesn’t fully charge under 36 hours unless you heat your garage because Tesla needs to heat the battery pack and batteries don’t charge well when it’s cold.
Supercharger is slow also, and it’s super bad for your battery when it’s cold.
You only get 55% of the normal range even when charged to full.
You lose about 2% every hour you have it parked outside. This is because Tesla needs to heat the battery pack to maintain its charge, and to heat the cabin a little bit so things don’t break inside the car.
Tesla has no thermal insulation at all, it’s an open design that maximizes heat transfer. Cars like Mercedes Benz have closed chambers, or tubes, where as Tesla is sheets of metal and empty space.
Also, heat pump doesn’t work in Canada because it doesn’t work much below freezing. We use electric furnace, which is much less efficient. We need all that ambient heat when it’s -32 F out there.