> EV energy usage is linear with speed. drag actually scales worse than linearly with speed (which further supports your point), but this is only considering p

> EV energy usage is linear with speed. drag actually scales worse than linearly with speed (which further supports your point), but this is only considering power consumption from the drivetrain in isolation. other systems (most significantly: climate control) have more static power consumption that is not related to speed. so there is a crossover point where the speed vs efficiency relation inverts, because the static draw is not offset by reduction in drag. I don't know what this would be for real world EVs, but I'd guess it's somewhere in the single-digit mph range.