A vehicle underbody structure includes a pair of rockers that are provided on both vehicle width direction sides of a vehicle underbody and extend in a vehicle front-rear direction, a battery that is disposed centrally in a vehicle width direction center between the pair of rockers and is disposed above a vehicle floor and on the lower side of a seat, a fuel tank that is disposed in the vehicle width direction center between the pair of rockers and is disposed under the vehicle floor and further toward a rear side of the vehicle than the battery, and a waste pipe that is coupled to a drive unit provided at a vehicle front side of the battery and extends in the vehicle front-rear direction between the battery and one of the rockers.

A vehicle lower structure includes: a battery pack having first and second battery units and a battery cover; and a fuel tank that is arranged on a vehicle rear side to be higher than the first and second battery units. At positions under a floor panel, the first and second battery units are arranged on both sides in a vehicle width direction of a propeller shaft. The battery cover has a coupling section that couples first and second battery accommodation sections. The coupling section couples the first and second battery accommodation sections such that a vehicle rear side thereof is higher than the first and second battery accommodation sections, extends in the vehicle width direction at a position above the propeller shaft, and is arranged next to a vehicle front side of the fuel tank.

A drive unit includes: a rotary electric machine; a rotary electric machine case accommodating the rotary electric machine; an electric power conversion device electrically connected to the rotary electric machine and configured to convert electric power supplied to the rotary electric machine and electric power supplied from the rotary electric machine; and an output shaft extending out from the rotary electric machine case and configured to output power of the rotary electric machine. The electric power conversion device is arranged on one side of the rotary electric machine. The output shaft is arranged between the rotary electric machine and the electric power conversion device.

A vehicle is provided with an interior chamber apart from a passenger compartment, and a container chamber in which a high pressure gas container is accommodated. A heat generating body is accommodated in the interior chamber. Further, in the vehicle, there are formed introduction ports through which atmospheric air is introduced into the interior chamber, a communication passage that enables communication between the interior chamber and the container chamber, and a lead-out port through which the atmospheric air is led out from the container chamber. The atmospheric air that is introduced into the interior chamber through the introduction ports flows into the container chamber via the communication passage, and furthermore, is led out to the exterior of the container chamber from the lead-out port.

A gas fuel storage device for a vehicle is provided. The device more easily secures a gas fuel storage capacity and prevents interior marketability of the vehicle from deteriorating.

A recreational off-highway vehicle includes side-by-side passenger and driver seats held within a chassis. The seats sit low in the chassis and are covered by a roll cage. Grab handles are positioned on the sides of the passenger seat. Select large round tubing protects the vehicle, while rectangular tubing frames the portions of the vehicle beneath body panels. The vehicle is powered by an engine rearward of the seats that is connected to a transaxle. A radiator is positioned above the engine. The vehicle is suited for rough terrain travel.

A hybrid vehicle may include a battery and a fuel tank, wherein the battery is mounted in a space defined under a body floor, on which a double seat is disposed, and the fuel tank is disposed over an upper end portion of a rear-wheel suspension and a rear of a body cross member.

A protection measure for a vehicle during a side collision is provided, and an oil feeding pipe is attached to a side face of a tank. A vehicle tank structure has a pair of left and right rear frames extending in the vehicle front-rear direction, a floor panel coupling the rear frames, and a tank provided below the floor panel. A side face part of the tank includes a connection port to which an oil feeding pipe is connected, the side face part being directed toward the vehicle-width-direction outer side. A hit-first face part located on the vehicle-width-direction outer side relative to a distal end of the connection port is located above a mounting face part at which the connection port is provided.

A gas tank-equipped vehicle equipped with a plurality of gas tanks includes: a vehicle body; a first gas tank disposed with a longitudinal direction thereof along a front-rear direction of the gas tank-equipped vehicle; a second gas tank that is disposed closer to the rear of the gas tank-equipped vehicle than the first gas tank is, and disposed with a longitudinal direction thereof along a left-right direction of the gas tank-equipped vehicle; a first mounting mechanism by which the first gas tank is mounted to the vehicle body; and a plurality of tank bands wound around the second gas tank to mount the second gas tank to the vehicle body.

A fuel cell vehicle includes a first tank, a second tank, first and second valves for releasing gas, a gas passage for supplying gas to a fuel cell via the first and second valves, a pressure-reducing valve for decompressing the gas, side members disposed on the respective sides of the vehicle, and a motor disposed rearward of the second tank and configured to drive wheels. The first tank is not disposed downstream of the second tank, on the gas passage. The pressure-reducing valve is disposed in a region located rearward of a rear end of the second tank in a vehicle front-rear direction, forward of a rear end of the motor in the vehicle front-rear direction, and between one of the side members and an extended line extended in the vehicle front-rear direction from a side wall of the motor. The pressure-reducing valve is disposed on the second valve side.