Your article is generally
Your article is generally well thought out and accurate, except for the commentary on the VOLT running on the "Range Extender" (generator). Before buying mine I was in communication with a GM engineer who told me the only vehicle to compare with the VOLT is the locomotive of a train.
This is because they both are propelled by electric motors- ALL THE TIME. Unlike the locomotive, the VOLT pulls power first from the battery (reserving power for some uses, then switches to creating power with the generator, all while maintaining required electric energy to the drive motor. I am on my second VOLT as I do not want to be restricted by range when traveling long distances and I have never experienced loss of power when seamlessly going from battery to generator. Most people don't even know what is happening.
GM shot themselves in the foot by NOT clarifying how it worked or advertising it as much as their more profitable trucks and SUV's.