As Lincoln entered the 1950s, Ford Motor Company sought to increase the differentiation between the Mercury and Lincoln model lines. For 1952, to add interest to the brand, Lincoln returned to model names for the first time since 1942, with the Lincoln Cosmopolitan becoming the standard Lincoln model, with the Lincoln Capri becoming the flagship model line. In a return to (small) pontoon rear fenders, Lincolns shared a body with the Mercury Monterey. Mechanically, Lincoln differed from Mercury, as the Ford truck V8 was replaced by the Lincoln Y-block V8 with a Hydramatic transmission. For the first time since the discontinuation of the Model K, Lincolns were produced with front-hinged rear doors.