Above is a video of Ross Lovegrove, aka "Captain Organic", whose parents were apparently first cousins, and who has some interesting ideas on DNA (Design/Nature/Art, not the other kind). About 13 minutes into the video, he starts talking about his ideas for cars ... starting with a water droplet and going on from there. His following vision is the one about the solar electric car which doubles as a street lamp. That is about the end of his ideas for cars in this particular video, so if that is all that interests you about the video, feel free to stop after that.
I think some of his ideas are interesting, but a bit ahead of their time perhaps. He reminds me a bit of Luigi Colani, who might be just coming into his time right about now. Comments are welcome, of course!