Italy's maker of all things small and puttery, Piaggio, has come up with a high-tech scooter with three wheels. But get that picture of grandma's Tri Rider out of your mind. This trike has two wheels in the front and one in the back, a setup it shares with a couple of late-model concept cars. The Piaggio MP3 — an overachieving sibling of the Piaggio GT series — features two front wheels that tilt up to 40 degrees in turns to provide more stability, according to the company, and provide an extra disk brake with which to cut speed. It'll be available in 125cc and 250cc models at a scooteria near you.