A hydrogen-powered two-seater unveiled in London this week can seat two, turn in the equivalent of 300 MPG and hit a top speed of 50 mph. Plus, its blueprints are open source. Take that, auto industry
The Riversimple Urban Car was nine years in the making. But when the diminutive, hydrogen-powered prototype debuted in London recently, the biggest difference between it and other fuel-cell vehicles wasn't its in-wheel electric motors or banks of ultracapacitors. It was its development-and-business model.
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