An arrangement of intake and exhaust system components in a fuel cell powered vehicle makes it easier to install those components on a vehicle body. The arrangement also improves power generating efficiency, and eases maintenance. The arrangement, which includes a fuel cell, intake system components such as an air cleaner, compressor, intercooler, and humidifier, and exhaust system components including an exhaust pipe which exhausts emission gas from the fuel cell through an exhaust port, is such that the intake system components and the exhaust system components are both located on one side of the fuel cell, for example behind the fuel cell. The air cleaner, compressor, intercooler, humidifier and fuel cell may be substantially linearly sequentially arranged, to reduce air flow resistance. The pipes between the air cleaner and the compressor, and between the intercooler and the humidifier are short.