With a history that goes back to 1939, the Mercury sub-brand once occupied an important place in the Ford family. Let’s take a closer look at these hidden gems from the Mercury lineup, and what makes them so special. Although the Cougar model itself was introduced for the 1967 model year, the GT-E trim did not join the lineup until 1968, occupying the slot above the GT. The 429 (7.0-liter) V8 produced 360 hp, and was exclusively paired with a three-speed automatic transmission. Subscribe to the newsletter for rare Mercury car insights Join the newsletter to keep exploring Mercury's rare coupes and hidden classics: detailed model breakdowns, production rarity context, and collectible specifications that help enthusiasts and buyers spot true Mercurys worth tracking.