standard response to the Coal fired power station whiners
500000 cars with ICB or 500000 with electric motors. Once we are over to electric we have centralised the power generation and can therefore change the method at any point. IE it doesn't matter too much that our power generation is largely carbon based right now. We change to nuke/solar/wind/fusion etc in the future and are car model still works. We don't have to change every flipping car over each time which would be the problem with other models such as hydrogen.