THREE WHEELS AND A DREAM: Honda's 3R-C may only be a concept car today, but after it's "official" showing at Geneva's International Motor show, it's possible we'll see these zero-emission vehicles hitting the production lines. The single seater runs off a battery electric system to get commuters from A to B without C-ing any CO2 emissions. Worried about cargo and comfort? The front of the vehicle hides a storage compartment for luggage and the "bubble" canopy tilts up to become a windscreen when a driver is actually in the vehicle. GET IT: In the future...maybe.