IRVINE, Calif., Jan. 5, 2015 /PRNewswire/ -- Mazda North American Operations (MNAO) today reported calendar year (CY) 2014 total (combined fleet and retail) sales in the U.S. of 305,801, up 7.7 percent over 2013 and the best result since 1994 (20 years), the last time the company...