Mazda North American Operations has opted to enter three specially modified for racing 2014 Mazda6s in the longest endurance race in America, the National Auto Sport Association (NASA)’s US Air Force 25 Hours of Thunderhill. Taking place on December 7 and 8, 2013, at the Thunderhill Raceway Park in Willows, Calif., the twice-around-the-clock-plus-an-hour race will […]

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