I'm not sure it's wise for Hyundai to associate themselves with POOP . . . they've worked really hard to make their brand more prestigious over the past decade.
Hyundai is about to unveil a new prototype car that's powered by FECES. Specially-treated poop can be used to power an amazing new type of fuel cell in the car . . . no gas needed, just poop.
Of course, until poop treatment centers are all over the place, this probably isn't practical . . . but one day, maybe we'll look back on this as a special moment . . . (Autoblog)