Ok, I am a little confused and concerned with the information I am getting on my Energy screen. I have a Roadster, used it all last winter and I understand the relationship between Wh/Km and projected or estimated range etc. I also understand that the Model S will draw more power than the Roadster being heaver etc but here is what I have been seeing consistently over the last 24 hours: 50Km Average Wh/Km of 300 and above. Has even been over the 600 mark for 25 km average this evening. I have been driving very slowly, speed limit on neighborhood roads with some packed snow in some areas. HVAC running with little fan and 21 degree temp with outside temp around -5. The graph, when set to show average upon coming home tonight is showing me an avg Wh/Km of 375. Ideal range is showing 257km. Projected range is showing 100 Km. The battery icon in the speedometer is looking like it is at about 70% (Green). I think that the computer is using an average of 375 indicated and coming out with 100Km projected but really, with almost 3/4 of the battery and driving in the conditions and the speed I am, I would expect the Wh/Km to be quite a bit lower....maybe just over 200 and the projected range to be higher. How is my Wh/Km over the past 5 Km coming back from a movie over 600??? In comparison, my Roadster today under same conditions over 50Km has an average of 190 Wh/Km. I almost feel like saying it feels like maybe they changed the SW to allow units to be in Km but somehow the displayed Wh/Km values are still in miles (although they display as km). If I take the 375 and divide by 1.6 I get a value that makes much more sense. If this is what is going on, then naturally the projected range would be calculated using erroneous numbers and give false readings. I also see the IDEAL line on the graph at around 250. That also seems high. I spoke to Mark in service briefly tonight who seemed to say that the values should not be that much different from the roadster and could even be better on snow. Anyone have similar results or insight?