Actually per spec for the 4.0 that should be 22.5 – 19.4 kWh/100 km which is 4.3 to 5.1 km/KWh I believe. The 5.0 is similar. I have not been able to get close to that in the wintertime. I agree the battery conditioning plays a role there. Interesting to see how this evolves. Yet my model X, even in winter time, averages at 23 kWh/100km, which would make me conclude the Tesla has better power management. Perhaps the tires play a role, tire pressure is prety low on the iX.
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