The Toyota I-Unit is a ultra compact single seater vehicle which was a cross between a motorcycle and a car, looking a lot like a exoskeleton. The vehicle had adapted shape depending on speed. At low speeds around cities the vehicle was more upright so you were similar height to pedestrians. At higher speeds the pod would lay back giving a more aerodynamic appearance and a much lower centre of gravity. Weighing in at only 180 kilograms the vehicle ran on lithium ion batteries with the rear wheels being run by electric motors. The vehicle was controlled by two joystick devices using drive by wire technology, and an intelligent transport system (ITS) was used so the vehicles could talk to other forms of transport and road markers. One interesting feature was mood lighting, the pod’s led technology would change colour depending on the drivers mood. Toyota has stated that it may launch a similar vehicle in years to come- at the moment it is just a working show car.
For more information: http://www.toyota.co.jp/en/news/04/1203_1e.html