Kit Eaton and Fast Company.com reports:
"Robert Q. Riley's company offered the XR3 as a kit-car option last year, but work has continued behind the scenes, and it's nearly ready to hit the road as a serious production car. All that remains is some prototype testing, and some work at the Center for Automotive Research to optimize its drive-train system. The drive train is the core of the vehicle--it uses a patented three-wheel system, with the rear wheel being solely electric-powered, and the front two wheels deriving power from an efficient diesel engine that can burn eco-fuels. Working alone, the Li-ion powered electric motor can push you 40 miles, and the diesel engine can get 125 mpg by itself. Combined, the two give the car a ridiculous efficiency of 200 miles per gallon of fuel." See full article:
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