I've searched and read many of the longest (and oldest) threads on TMC related to cold weather range, and haven't seen the explanation for what I'm seeing... I've had my 60D for a few days (and love it) and have had mostly 20 km and shorter drives - it's been unusually cold for Vancouver ( 0°C and below for many days in a row) and although I've got a HPWC I haven't been consistently preheating so I'm assuming that a lot of energy is going to battery and cabin heating at the beginning of my drives. What I'm not understanding is that I'm getting an average of 230 Wh/km (which seems okay in these conditions) but my battery percentage is dropping faster than accounted for by Wh/km alone. According to TeslaFi, for 18.37 km driven last night at 200 Wh/km I used 7% of my battery (3.68 kWh). Either my battery is 52.6 kWh usable (and not 62.4 as recently discussed in recent threads), or battery and cabin heating is "hidden" and not included in the Wh/km consumption data. That would be okay and manageable, but seems to be contradicted in other threads where members state their cold weather consumption in terms of 30% greater Wh/km. Would really appreciate someone pointing out where I'm confused.