The UFE-III (Ultra Fuel Economy-third generation) is a mini-hybrid concept car being developed by Daihatsu. The vehicle can transport three people (one driver, and two passengers in the rear). The hybrid system comprises a 660-cubic centimeter direct-injection gasoline engine, two motors, and a nickel–metal hydride battery. Daihatsu estimates the UFE-III's fuel economy at 72 kilometres per litre (170 mpg-US).