Vehicle, Mobility and Transportation Design Dancer Electric City Bus by DANCER Dancer is the lightest bus in operation. It needs less energy and batteries than any competitor. In order to simplify things, the usual bus construction is re-engineered from scratch. Dancer’s fully composite body draws on sea-yacht design and is made with the use of recycled PET bottles. Unique in the bus world rear screen enhances visibility for fellow drivers and can be used for advertising purposes. As a modern means of public transport, Dancer features connectivity for passengers via Wi-Fi or USB, an automatic ramp for disabled riders, as well as a customizable workplace for the driver.