<http://schema.org/about>
"In all-electric mode, the XL1 requires less than 0.1 kWh to cover more than a kilometer."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/slideshows/cars/vw-xl1-worlds-most-efficient-production-car-debuts-us-261-mpg/page/2/>