The 1968 Plymouth GTX Convertible represents the “gentleman’s muscle car,” combining the high-performance hardware of the Road Runner with a significantly more refined level of trim and standard luxury. As one of only 1,026 convertible examples produced for the 1968 model year, this GTX occupies a rare position in the world of Mopar collectibility. Following a comprehensive completion of a project started in 2011, this vehicle now stands as a fully realized example of Plymouth’s premier performance drop-top, offering a visceral driving experience backed by a massive 440 Super Commando heart.
Buffed Silver Metallic and Classic Brightwork
The exterior of this GTX is finished in its factory-correct Buffed Silver, a sophisticated shade that highlights the sharpened “Coke-bottle” silhouette introduced for the 1968 model year. Functional and aesthetic features include a replacement power-operated black soft top, quad headlights, and dual exhaust outlets that exit cleanly below the chrome rear bumper. Black horizontal sport stripes provide a sharp visual contrast, while 14-inch chromed steel road wheels mounted with BFGoodrich Radial T/A tires maintain a period-correct muscular stance. Fender-mounted turn signal indicators and bright wheel lip moldings further emphasize the premium positioning of the GTX trim.
Striking White Vinyl and Crimson Contrast
Inside the cabin, the color palette shifts to a bold White on Red configuration, featuring front bucket seats and a rear bench trimmed in pristine white vinyl. Red carpets provide a deep color contrast, while woodgrain trim accents the dashboard and door panels to remind occupants of the car’s upscale mission. Interior equipment is both functional and performance-oriented, including a center console, a wood-rimmed three-spoke steering wheel, and a Hurst shifter for precise gear selection. Modern convenience is subtly integrated via a Sony CD head unit with Bluetooth, which is housed in a custom enclosure within the trunk to preserve the dashboard’s original appearance.
Super Commando V8 and Four Speed Engagement
Mechanical dominance is provided by a rebuilt 440ci Super Commando V8 engine, which utilizes a four-barrel carburetor to produce a factory-rated 375 hp (380 PS) and 480 lb-ft (651 Nm) of torque. This immense power is sent to the rear wheels through a four-speed manual transmission equipped with a Centerforce clutch, providing the driver with total control over the big block’s delivery. The 3.54:1 Sure Grip rear differential was also rebuilt to ensure reliable traction, while the addition of power-assisted front disc brakes in 2012 ensures the car stops with the same authority as it accelerates.
| Technical Specifications | |
|---|---|
| Engine | 440ci Super Commando V8 |
| Transmission | 4-Speed Manual |
| Rear End | 3.54:1 Sure Grip |
| Clutch | Centerforce Performance Clutch |
| Brakes | Power-Assisted Front Disc (Added 2012) |
| Steering | Power Steering |
| Wheels | 14-inch Chromed Steel Road Wheels |
| Production | 1 of 1,026 Convertibles |
Rarity and Collector Potential
In the modern collector market, the 1968 Plymouth GTX Convertible is often prioritized over its Dodge counterparts for its unique blend of aggressive B-body styling and premium interior appointments. While many performance Mopars were stripped-down racers, the GTX offered a more mature alternative without sacrificing the raw 440ci power. The scarcity of the convertible body style, combined with the presence of a four-speed manual transmission and documented restoration work, makes this example a strong competitor against other high-end muscle cars like the Pontiac GTO or Buick GSX.
A Milestone Mopar Ready for the Road
Offered with a clean Illinois title and a documented service history, this 1968 Plymouth GTX Convertible is an exceptional representative of American performance history. It successfully bridges the gap between a high-power small block and a luxury cruiser, making it an ideal choice for the enthusiast who values both rarity and drivability. Whether cruising with the power top down or showcasing the rebuilt Super Commando engine at a local meet, this GTX remains a definitive icon of the 1960s muscle car movement.
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Source: bringatrailer.com
