> If you have one, it’s far more efficient to use it to drive the wheels. I don't think this is as cut and dried as you think. Generators are ~90% efficient. G

> If you have one, it’s far more efficient to use it to drive the wheels. I don't think this is as cut and dried as you think. Generators are ~90% efficient. Gearboxes and differentials aren't 100% efficient either. If you are already carrying enough motor to propel you without an engine then you can size the ICE closer to average load than peak load potentially getting back a bit of efficiency.