Ford and Airstream join forces to present a concept crossover car that operates in pure electric mode with the Ballard hydrogen fuel cell recharging its lithium-ion batteries to enable a total range of approximately 300 miles. ...
... "The concept is powered by a plug-in hydrogen hybrid fuel cell drivetrain - called HySeries Drive - that operates under electric power at all times. This advanced fuel cell system is half the weight and cost of today’s fuel cells and can operate in the dead of winter. That's a major step forward because today's fuel cells don’t do well when the mercury dips below freezing. 
The concept's bold, futuristic front-end explores a new look for Ford, encapsulating the single-surface grille and headlamps into the same graphic. Each of the concept's bold orange-trimmed window graphics is a unique shape.
The Ford Airstream Concept features a floating instrument panel with flush-mounted, touch-sensitive controls and a multi-function single gauge display provides the driver all primary information. A Sharp dual-view screen centrally mounted on the instrument panel provides a camera view and secondary driver-oriented information, while allowing the front-seat passenger to view DVDs and post mobile blogs. The driver and front-seat passenger will navigate in style in modern, pod-shaped swiveling captain’s chairs that also rotate so they can easily socialize.
Tucked inside the cocoon-like lounge in the rear of the Ford Airstream Concept is the ultimate entertainment source – a 360-degree viewing screen. The focal point of the passenger area, this innovative screen can be viewed from every seating position in the car – even the front seats, when they swivel around toward the conversation pit.
The new HySeries Drive plug-in hydrogen fuel cell featured in the Ford Airstream Concept is more than a concept. This powertrain is already on the road and driving in a Ford Edge prototype. Ford scientists and engineers created this vehicle with partial funding from the United States Department of Energy. The HySeries Drive delivers the combined city / highway equivalent fuel economy of 41 miles per gallon. In this application, the fuel cell's sole function is to recharge the vehicle's lithium-ion battery pack as needed. This allows it to work like a portable generator, instead of an engine, as had been the case in previous Ford fuel cell vehicles. " ...
Via Ford Motor Company: TWO AMERICAN ICONS DELIVER THE CROSSOVER MODEL OF THE FUTURE WITH THE FORD AIRSTREAM CONCEPT
The Ford Airstream Concept was developed by the following team members, led by J Mays, group vice president – Design, and chief creative officer. Peter Horbury, executive director - Design, The Americas, Freeman Thomas, director - North America Strategic Design, David Woodhouse - chief designer, Kris Tomasson - chief designer, Jordan Bennett - exterior design manager, Matt Edwards - interior design manager
A123 Systems has developed a Plug-In conversion kit for the Toyota Prius. While not developed by Toyota - nor approved by Toyota - here are the details!
mputer control systems the Prius is tricked to keep running on battery as there is more battery power. This additional battery boost can carry many people through their daily commute ... allowing them to power the car mostly by electric from their home. 
" ... ... half of the cars in the U.S. are driven just 25 miles a day or less....Plug-in Conversion Modules enable your vehicle to achieve outstanding fuel economy by electrically supplementing the hybrid drive train for up to 40 miles. When the Hymotion L5 module is fully depleted, your vehicle will function as a standard hybrid until you recharge." 
