As I am eagerly awaiting delivery of a 2017 Prius Prime plug-in hybrid in their #1 state Oregon, this is all good news. However, as I'm switching from an old diesel VW, I also can't help but notice these numbers are very literally electric vs. gas, and look like they wouldn't pencil out against a diesel sedan. That said, the contrast there is between belching soot out vs. clean air, so hard to argue on that front.