Open cabin vehicle

An open cabin vehicle comprising:

• a vehicle body including a floor formed to lead to an entrance having no door, and a roof disposed farther upward than the floor, wherein the vehicle body forms a vehicle-body inner space, the vehicle-body inner space being defined at an upper end by the roof, capable of accommodating an occupant and/or a luggage, and being open to a vehicle-body outer space which is a space around the vehicle body;
• an electric motor for providing driving force to the vehicle body;
• a fuel cell unit including a hydrogen tank for storing hydrogen, a fuel cell stack which uses as fuel the hydrogen stored in the hydrogen tank, and a hydrogen supply pipe for connecting the hydrogen tank with the fuel cell stack, wherein the fuel cell unit generates electric power to be supplied to the electric motor;
• and
• a fuel-cell-unit-arrangement-space forming wall part defining a fuel-cell-unit arrangement space, as viewed in an upward direction or a downward direction of the open cabin vehicle, such that the hydrogen tank, the fuel cell stack, and the hydrogen supply pipe are disposed in the fuel-cell-unit arrangement space, wherein the fuel-cell-unit arrangement space is provided below a portion of the vehicle-body inner space farther backward than at least a part of the floor, and the fuel-cell-unit arrangement space bordering the vehicle-body inner space, thereby being connected to the vehicle-body outer space, which is a space around the vehicle body, via the vehicle-body inner space, wherein
• an upper end of each of the hydrogen tank, the fuel cell stack, and the hydrogen supply pipe is located farther upward than the floor in a state in which the hydrogen tank, the fuel cell stack, and the hydrogen supply pipe are disposed in the fuel-cell-unit arrangement space.