http://www.gizmag.com/4mc-four-wheel-tilting-motorcycle/11939/
The link at the bottom of the page will take you to a cool video showing it in action on a skid pad.
If scooter practicality was added to the basic concept I would want one.
Modern Vespa is the premier site for modern Vespa and Piaggio scooters. Vespa GTS300, GTS250, GTV, GT200, LX150, LXS, ET4, ET2, MP3, Fuoco, Elettrica and more.