Lincoln is trying to get back in the luxury vehicle game, and the controversial lettered designations now used to describe its vehicles are part of the plan. Some may have been happier with the Zephyr moniker, as MKZ is easily confused with Lincoln’s new MKX crossover utility vehicle, which itself is close to Acura’s MDX. Whatever it’s called, the new sedan is critical for this luxury marque to re-establish itself among premium sedan buyers. The car itself is based on a solid foundation: Ford’s CD3 architecture, which the MKZ shares with the Ford Fusion and Mercury Milan, as well as the Mazda6 sedan, Ford Edge and Lincoln MKX crossovers.