(Credit: CNET Networks)Volkswagen is getting as much mileage as it can from its Up! concept microvan. After appearances at both the Frankfurt and Tokyo auto shows in recent months, the model made another appearance at this year's Los Angeles show in the form of the Space Up Blue concept. In contrast to the previous variants, the four-door Space Up Blue came with some drive-train details: it is powered by an energy network of a lithium-ion battery pack, a high-temperature hydrogen fuel cell, and a solar panel. Check out our slide show of the blue sky Blue here.
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