As someone with a leased Model S and a Model 3 reservation who needs to decide which car to choose soon, I'd like to know how well the Model 3 HVAC worked in winter, if there are any owners who live in the snow belt and got their Model 3s in time for a good test. I'd particularly like to hear from people who have had Model S and can compare the 2 cars. The Model S (and X) difficulties in cold weather are well-documented in this forum. My main problem with my S has been that the car seems to gradually turn chilly on longer trips, so that you have to continually turn up the temperature to keep the car warm -- and sometimes it does not keep up. (It is odd because the system can and does crank out a lot of heat, but it does not seem able or willing to provide a steady supply of heat on long drives.) People have also complained of poor sealing of doors, windows, and penetrations through the firewall, leading to cold air leaks. So -- anyone who had substantial cold weather experience yet with their Model 3? How did it do? How does it compare to Model S? Thanks in advance for any input.