DAYTONA BEACH, Fla., Jan. 25, 2013 /PRNewswire/ -- Mazda will be seeking its 24th class win at the Rolex 24 at Daytona endurance race with three all-new 2014 Mazda6 racecars powered by Mazda's advanced, 400-horsepower SKYACTIV-D Clean Diesel engine. This will be the first-ever diesel...