Next week ushers in the Geneva auto show, and based on last year's and the previews hus far, it's going to be bubbling with alternative vehicles. Honda has released a teaser of its 3R-C, an all-electric single-seater urban mobility concept. With two wheels in the front and one in the back, it conjures images of the Aptera but even more compact Honda is well aware of the world's mass urban migration, and the 3R-C fits into that category of ever-so-small, park-it-anywhere urban commuter. As the Autoblog Green guys point out , Honda's concept is only slightly less radical than the...