You're thinking of ICE vehicles, which have efficient torque at certain RPMs, and don't recover energy when they brake, so traffic is even more inefficient. Ele

You're thinking of ICE vehicles, which have efficient torque at certain RPMs, and don't recover energy when they brake, so traffic is even more inefficient. Electric vehicles have all the torque, all the time, and do recover energy, so for them it's more about wind resistance, which increases with speed.