I am from Minneapolis, MN. I have been through many crisp winter mornings over the years. I am not a Tesla owner yet, but hope to be, some day. I have been a fan since the first roadsters were shipped. I followed information and news about Tesla products, technology, and blogs and forum posts, with very great interest.
I was waiting for a vehicle that seems more reasonable in Minnesota Winters. I have seen the current state of the vehicle incrementally approach this. I have now seen more vastly Tesla's in Minneapolis in the last few months, than ever before.
I told myself that a 100 kWh battery is the minimum I was willing to accept, since I knew the battery would only manifest 70% of that, in the cold of a Minnesota winter. I was also hoping that the Giga factory cells would have a slightly improved chemistry, to allow a lower battery temperature rating. They stated that they were working on energy density and longevity. They did not mention temperature rating, unfortunately.
I checked the two original Tesla blogs of JB Straubel, Tesla Chief Technical Officer, concerning "driving range", to see if the charts and graphs revealed more. Unfortunately, the charts do not use temperature as a variable. Maybe I should search for another resource like another EV site.
I would like it even better, if the energy density in the battery cells was much higher so that they could reduce the battery weight by ½, to reduce the stress on the suspension components, and to reduce the weight of the vehicle, to improve control in slippery road conditions.