<http://schema.org/about>
"According to a recent survey by Consumer Reports, U.S. drivers now care more about fuel economy when shopping for a new vehicle than anything else. 37% said their leading consideration when shopping for their next car will be fuel economy."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/cars/americans-say-fuel-economy-most-important-car-buying-factor.html>