1 Hyundai's E4U (the four E's are Egg, Evolution, Electricity and Eco-friendliness) has a rotating front "sphere" allowing the 180-pound vehicle to go..
2 Efficient personal transport vehicles aren’t exactly a pristine example of new technology — they’ve been around for a while.
3 Meanwhile, the vehicle, which includes a helmet that apparently doubles as the top of the "egg," has 500-watt motor that delivers a top speed of abo..