The Ford Airstream is a concept car built by Ford that made its debut at the 2007 North American International Auto Show in Detroit, Michigan. The Ford Airstream is a retro-futuristic crossover utility vehicle that was inspired by the classic Airstream recreational vehicle trailers built since the 1930s. The modern Ford Airstream concept includes a plug-in hybrid hydrogen fuel cell drive system, called HySeries Drive, that operates exclusively on electrical power. Ford calls the Ford Airstream Concept "a futuristic look at crossovers" as "modern touring vehicle(s)" for recreational travelers. The concept vehicle was designed in cooperation with Airstream, a division of Thor Industries. The design and name of the Airstream were possibly influenced by the Ford Aerostar. Powerplant The concept vehicle is powered by a rechargeable plug-in hybrid hydrogen fuel cell drive train, called HySeries Drive. This power plant system was developed with partial funding from the United States Department of Energy, and is currently being tested on a prototype version of the Ford Edge. The Airstream Concept's wheels are driven by electric motors, which are powered by a lithium-ion battery pack. The Ballard Power Systems hydrogen fuel cell system recharges the vehicle's battery pack as needed, as a portable generator, and the vehicle can also be plugged into an AC source, to recharge between trips. The HySeries Drive delivers the equivalent of a combined city/highway equivalent fuel economy of 41 mpg (U.S.) (5.7 L/100 km). In pure-battery mode, the Ford Airstream Concept is designed to travel about , before the hydrogen-powered fuel cell begins operating to recharge the vehicle's 336-volt lithium-ion battery pack. With a full load of hydrogen, the range increases another , for a total of . The sole exhaust emission from the operating vehicle is water vapor. Exterior The Ford Airstream includes asymmetric doors. The passenger side door is a power clamshell hatch that runs two-thirds the length of the vehicle for loading of passengers and cargo. The crossover includes a rear hatch for loading cargo aft. Interior The interior was inspired by spacecraft images and environments portrayed in 2001: A Space Odyssey, according to Ford. It is described as a "lounge atmosphere", meant to provide a relaxing experience while traveling. The instrument panel includes flush-mounted, touch-sensitive controls and a single, multi-function gauge display with primary driving information. A center-mounted dual-view screen provides a camera view and secondary driver-oriented information, and also allows the front-seat passenger