Somehow BMW let the i3 team do a clean sheet design: carbon fiber body on aluminum frame;
I thought at the time, and for some time afterward, that the carbon fiber body was a brilliant innovation and a harbinger of the future.
Sadly, not BMW nor any other auto maker has followed by using a carbon fiber body for a fully mass-produced car. So at the moment it looks like a noble but failed experiment. But who knows? Maybe a few years from now, the idea will be re-introduced, and perhaps will grow. If that happens, then we'll look back and see the i3's carbon-fiber body as an idea ahead of its time.
I have no illusions about the Prius Prime because it is first a Prius. The ~5.6-5.9 kWh battery is the natural growth of the Gen-1, plug-in Prius. This is not an electric car with a hybrid-engine backup. It is a hybrid-engine car with an expanded battery. Unlike traditional car makers, the Prius starts as an optimized design.
Optimized design? I guess you are a lot more impressed with Toyota's engineering than I am. I was astounded when the first-generation Prius Plug-in had no better EV range than some Prii that were already running around with third-party kit modifications to convert them into a PHEV with a tiny all-electric range. The EV range of the Prius Plug-in was just as tiny!
No, I'm not impressed.
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But, Bob, I was talking about a commitment in resources and capital investment in making and selling EVs in large numbers. VW is talking about what are apparently quite serious plans for converting multiple auto assembly plants over to making PEVs. I'm still somewhat skeptical, because VW has lied to us so many times about putting EVs into production... but all the news about that indicates they really are following thru on their announced plans, this time.
I wasn't talking about merely designing a PEV, not even one started as a clean-sheet design to be a PEV, like the BMW i3, the Nissan Leaf, the Bolt EV... and of course, all of Tesla's cars.