If you cared about actual efficiency, you'd be skeptical of BEVs today. There's no straightforward of powering them directly with renewable energy. You will nee

If you cared about actual efficiency, you'd be skeptical of BEVs today. There's no straightforward of powering them directly with renewable energy. You will need vast amounts of energy storage to make that work. That will not be all that efficient. And that's after you accept the huge upfront cost of the batteries and all the problems they entail. Meanwhile, no one is looking at compromise solutions. Something like a PHEV or even a plug-in FCEV would solve a lot of these complaints right away. There are ways around these issues even in the real world. Finally, it's not like 10 years is that long in the car industry. If FCEVs end up matching BEVs in efficiency in 10 years, that's means we're pretty much at the verge of FCEVs taking over.