One doesn't normally think of the Swiss as terribly eccentric, but you could make an exception for Rinspeed boss Frank Rinderknecht. Some of his past creations have been pretty out there, like the sQuba, which started out as a Lotus Elise and ended up a fully electric vehicle that could also dive underwater.
Or the Ʃtos, based on a BMW i8 hybrid but with its own drone that can deliver flowers. But interspersed among the wackiness are some clever ideas. In 2009, the company's iChange used an iPhone as a key and controller—sorry Tesla fans, Elon didn't think of that one first! And at this year's Detroit auto show we also saw the Oasis, an adaptable, autonomous city vehicle that bridges the gap between Blade Runner and our current timeline.