Whats so innovative about it ? The main factor behind fuel efficiency is the engine which in this case has been developed by Honda. Also, its fuel efficient because it is light and running on bicycle wheels (very small wheel surface area, so less friction). The lesser said about its lawn mower like speed, the better. If u use the same concept...upscale the engine to 800 cc and put a 500 Kg chasis....the mileage would come down to 10-12 Kmpl. And if u hail this just as a fuel efficent transport device (which isnt practical at all), let me tell you that the world record for most fuel efficient (impractiacl) car goes to Honda and the figures are 3000 Kmpl
