In the late 1960s, Plymouth’s midsize lineup expanded to include a range of performance-oriented models. The GTX, introduced in 1967, was the top of the line muscle car, boasting a powerful engine, aggressive styling, and luxurious interior.
It was designed to compete with other high-performance muscle cars of the era, such as the Chevrolet Chevelle SS and Pontiac GTO. Meanwhile, the Road Runner, launched in 1968, offered a more affordable alternative to the GTX.
It was initially positioned as a budget-friendly performance car, but quickly gained a reputation for its raw power and distinctive appearance. The Road Runner’s unique design, featuring a cartoon coyote character on its front fenders, helped to set it apart from other muscle cars.
Despite its premium status, the GTX struggled to gain popularity among muscle car enthusiasts. Its higher price tag and more refined nature made it less appealing to many buyers who were looking for a no-frills performance car. As a result, the GTX was discontinued in 1971, just four years after its introduction.
However, the Road Runner remained a popular choice and continued to be produced through 1975. It underwent several changes and updates during its production run, including the addition of new engines, transmissions, and styling cues. The Road Runner’s enduring popularity can be attributed to its combination of performance, affordability, and distinctive character.
For three years, the “Road Runner” and “GTX” badges were offered on the same car. When the GTX was discontinued, the nameplate was revived as an optional trim level for Road Runners equipped with the powerful 440-cubic-inch V8 engine. These dual-badged vehicles are among the rarest Mopars of the era, with production numbers dwindling significantly over the years. The B5 Blue Road Runner GTX pictured here is one of the most sought-after examples, as fewer than 400 were produced in 1974.
A rare 1974 Road Runner GTX, uncovered by classic car prospector Dennis Collins, has emerged from decades of obscurity.* The car, a B5 Blue coupe, was found parked in a hangar where it had been sitting since it changed hands for the first time. Likely not driven since the 1980s, the GTX showed signs of rust, weathered paint, and significant wear and tear inside the cabin.
Despite its condition, the car’s potential was undeniable. Upon lifting the hood, Collins discovered a partially dismantled 440 V8, but the second owner confirmed he had most of the missing components, including the carburetor and the air cleaner. The numbers-matching drivetrain, original paint, and interior further solidified the car’s value.
What made this find even more exceptional was its rarity. The second owner revealed that the B5 Blue coupe was one of only 25 promo cars built in 1974. These cars were all finished in blue with matching interiors and equipped with identical options before being sent to dealers. In April 2023, another derelict and incomplete example of these promo cars was found in a junkyard, highlighting the scarcity of these vehicles.
While it’s unclear how many of these promo cars are still in one piece, it seems only a handful have been documented so far. The discovery of this 1974 Road Runner GTX is a significant event for Mopar enthusiasts. Not only is it a rare example of a classic muscle car, but it also offers a look into the promotional strategies of the era.
These promo cars were likely used by dealerships to attract customers and generate interest in the Road Runner model. The car’s current condition suggests that it will require significant restoration work. However, its value and rarity make it a worthwhile investment. With careful restoration, this 1974 Road Runner GTX could become a prized possession for a Mopar enthusiast.
