Meet the Ego Urban Transporter: an enclosed pedal powered tricycle with an electric assist motor that gets you around your city. It has a max speed of 20 mph and a range of over 30 miles. If you pedal, you get a higher range. The 750-watt motor is powerful enough to get you up and down hills with less effort.
As the developers explain, it is possible to use the Ego as a regular bicycle. The above video shows how this tricycle performs.