Ryan Chin, Smart Cities Research Group, at M.I.T. explains how using the CityCar is much more efficient than a traditional car in a congested city. The CityCar is a public use electric car for two passengers that is shared by swiping a credit card at a designated point and then returning it to a drop off point for someone else to use. The CityCar is significantly lighter than a traditional car and can be folded to fit into small spaces. Hear more from Chin about the CityCar.