Car designers are constantly up to all kinds of mischief, and the results often don't look like they'd hold water. But we certainly couldn't say that about Matt Stuble.
Tesla isn't the only silicon valley company working on more efficient vehicles. Marine Advanced Research has built a prototype catamaran called Proteus that they describe as a Wave Adaptive Modular Vessel. Catamarans are generally known for their speed but this one goes beyond that.