It took a team of nine to win the Buckminster Fuller Challenge, namely, a team of MIT researchers and students led by professor William J. Mitchell, who took the top prize with their Sustainable Personal Mobility and Mobility-on-Demand Systems:

Mobility-on-Demand systems utilize fleets of shared-use lightweight electric vehicles placed at automatic charging racks throughout a city. The CityCar and RoboScooter, both folding vehicles, along with the Green-Wheel Bicycle, minimize parking space and can be picked-up and dropped-off at any rack. Mobility-on-Demand systems maximize mobility and dramatically reduce congestion and pollution through energy and land-use efficiency.

Top prize is a cool $100,000, to be awarded at a conferring ceremony at the Chicago MoCA on June 6th.

Above is the winning team's RoboScooter, which was realized as a full-scale working prototype. It is, however, just a portion of the winning concept; you can check out the rest of it here.