I don't think it makes it too complicated. I think there should be a separate entry for plug in vehicles. Sales of them are huge. They exist because of range anxiety and the need to travel long distances with a quick fill up option. These are the cars from which Tesla could really cannibalize sales (ASSuming the 3 has the supercharger option). If the 3 existed when I bought my Energi, I'd probably be driving Tesla right now.Phffft, the Volt isn't a hybrid, but whatever. EREV makes to poll too complicated I suppose. Only a few of them out there.