Lincoln has struggled to compete in the heart of the luxury market with the likes of the BMW 3 and 5 Series, Lexus GS, Infiniti G and M, or Cadillac CTS for many years. The company unveiled a possible competitor in that segment at the 2006 North American International Auto Show in Detroit in the form of the MKS sedan concept. Now, Lincoln is making good with a production model for the 2009 model year.