Asian car manufacturers have been demoing Personal Mobility Vehicles (PMVs) for what seems like forever. They're usually fairly dull, but every once in a while a concept comes along that's earth-shatteringly good. Hyundai's E4U is one such concept. Looking like a bumblebee egg that fell into Tron's grid, the E4U moves by using a semisphere that constantly spins horizontally. The spinning semisphere is tilted to generate drive while two stabilizing wheels at the rear keep it moving straight. The technique is similar to how a helicopter steers — it tilts to move using its large horizontal rotor while using a vertically-mounted rotor for stability. It's not clear what exactly powers the E4U, but it seems unlikely to be gas.
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via The Verge - All Posts http://www.theverge.com/2013/4/2/4173522/hyundai-e4u-personal-mobility-vehicle-tron-concept
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