Right now the temp is minus 20 degrees Celsius outside in Denmark, both in Norway, Sweden and some placed in the US/Canada temp will often get below a comfortable. temp. I assume Tesla should work well below that - anyone who have seen the beta who know how the heat is transported to the back seats. most premium cars have a air flow to the back seats to maintain a decent temp in the car. This picture is from a another site regarding a used VW, and shows a Passat witch have been drinking to much water...But it also shows the air pipes below the front seats - these transport hot/cold air flow to the back passengers Have anyone noticed any similar heating to the back seats passengers in the beta? - any pictures ?