Our model Y seems to consume a lot, more than our old model 3 in the cold. Temps have been averaging around the freezing mark, and yet our model 3 is beating our model Y by a wide margin. The model 3 is averaging 210W/km (336W/m), while our model Y around 250W/km (400W/m). This seems odd given the heat pump. Anyone else been observing their consumption for comparison sake?