The Mercury Grand Marquis emerged in 1975 as a posher version of the existing Marquis. By the ends of the 1970s, the Grand Marquis' proved so popular it would even outsell the full-sized Mercury base ...

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For 2007, Mercury upped the ante with standard equipment, adding ABS, side airbags, side curtain airbags, folding front passenger seat and traction control. The carmaker also expanded the powertrain ...