If you ask most Americans to name a domestic luxury car manufacturer, nine times out of ten the answer is going to be Cadillac. Press them further still to name a second luxury car company, and I’m willing to bet the next work out of their mouth is Buick or Chrysler. Ford Motor Company’s 96-year-old Lincoln is all but forgotten. But that wasn’t always the case -- Lincolns used to be the cars of the affluent. Every single president starting with Calvin Coolidge in 1923 until George H.W. Bush left office in 1993 rode in a Lincoln, not a Cadillac. Now that Ford’s dumped Mercury and is safely out of danger from the recession (being up 12.1 percent this year as of June 1), it’s looking to turn its attention to Lincoln.