Founded in 1938 as Edsel Ford's vision for middle-market brand positioning between Ford and Lincoln, Mercury emphasized quality features from Detroit, Michigan manufacturing facilities and achieved significant post-war success. The Monterey delivered full-size luxury, the Comet found compact car success, the Cougar offered upscale pony car positioning, the Cyclone provided performance variants, and the Marquis served as flagship model—establishing clear brand identity in Mercury's golden era. Brand positioning became challenged in the 1980s as product overlap with Ford and Lincoln created differentiation difficulties and badge engineering criticism intensified: Sable was essentially Ford Taurus, Mountaineer duplicated Ford Explorer, and Milan mirrored Ford Fusion. Ford discontinued Mercury in 2011 during restructuring following the financial crisis, ending a chapter in American automotive history. Despite its demise, Mercury's legacy remains important in the collector car market with a devoted enthusiast community preserving the marque's memory. Mercury's story serves as cautionary tale about brand positioning: without meaningful differentiation, a middle-market brand becomes redundant overhead—proving that automotive brands require distinct identity and purpose beyond occupying price points, and that badge engineering eventually destroys whatever brand equity existed when customers realize they're paying premiums for cosmetic changes rather than genuine substance.