
Students at MIT in Cambridge, Massachusetts, have designed an urban transportation innovation that will work a lot like luggage carts at the airport: stackable, electric, two-person “City Cars” that can fold up to take up less space. Calling them “cars” is slightly misleading, however, since they don’t have an engine and are intended not as a replacement for conventional cars, but rather as a completely new type of vehicle.
The vehicles are driven by robotic motors in each wheel, eliminating the need for any combustion engine, or even a transmission. This frees up a lot of space, so that the interior of the car is big enough for two, yet the exterior is about one quarter of the size of a regular sedan. Everything on board is controlled by a computer, and the car starts with the push of a button. The wheels have 360 degrees of rotation, which eliminates the need for U-turns, 3-point turns, or parallel parking!
You can find the entire article here
http://aboutmyplanet.com/videos/stackable-foldable