Chevy Volt, Mini Cooper Countryman pass crash test, Mazda 5 fails
July 30, 2014 at 00:01 AM EDT
DETROIT, July 30 (Reuters) - The General Motors Co Chevrolet Volt was the only one of a dozen small cars tested by the Insurance Institute for Highway Safety to earn a "Top Safety Pick+" award, the IIHS said in a statement on Wednesday.