<http://schema.org/alternativeHeadline>
"Because of antiquated testing procedures dating to the 1970s, cars are tested for federal rules as if everybody drives 55 and never uses a radio or air conditioner."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/green-tech/transportation/blogs/why-545-mpg-is-really-40-mpg>