This interesting concept of eco bus “Credo E-Bone” was designed by Hungarian designer Peter Simon. This zero-emission bus runs on hydrogen fuel cells and lithium batteries to add sustainability to the public transportation. Powered by four in-wheel electric motors “Credo E-Bone” carries its power sources on its roof. The shell of the bus has been made from lightweight composite plastic that resembles a skeleton structure. Such lightweight construction makes the concept energy-efficient. Hope soon such eco bus will be significant part in eco travel.