In December, Ford Motor Company’s U.S. sales that include the Ford, Lincoln, Mercury and Volvo brands, totaled 139,067, down 32.4 percent compared with a year ago. Despite the decline, Ford estimates that the market share of the Ford, Lincoln and Mercury brands were 14.6 percent in December, up 0.7 of a point versus a year ago. For the full year, FoMoCo’s sales were down 20.7 percent to 1,988,376, from 2,507,366 percent a year ago.