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1968 Plymouth GTX 426 Hemi
The 1968 Plymouth GTX was the upscale performance member of Plymouth's B-body line, sold as a two-door hardtop or convertible and positioned above the deliberately plainer Road Runner. Source records describe the GTX as a factory package with bucket seats, woodgrain interior trim, GTX identification, lower-body bright moldings, special tail-lamp treatment, hood scoops, dual exhaust outlets, and heavy-duty chassis equipment.
For this page, the target configuration is the factory 426 Hemi GTX. The supported engine identity is Plymouth's 426 cubic-inch Street Hemi, described in period-style source material as a 426 ci two-four-barrel V-8 rated at 425 horsepower. The source set also supports the important boundary that the Hemi was not simply a badge: it changed required equipment. The option-list source states that the 426 Hemi was not available with air conditioning, trailer towing, automatic speed control, or the three-speed manual transmission, and that Sure-Grip or heavy-duty Sure-Grip axle equipment was tied to GTX/Hemi drivetrain choices.
Transmission and axle details are therefore recorded conservatively. The verified choices are the four-speed manual and TorqueFlite automatic; exact broadcast codes and all safe gear-ratio combinations need factory ordering-library confirmation before publication as definitive. Likewise, production figures are carried as reported reference/registry data rather than factory-audited totals.
Paint and trim records are model-line evidence, not proof of any individual car. The paint table lists documented 1968 Plymouth colors from a paint-reference source, while GTX appearance and interior entries use the mid-size Plymouth feature summary. Authenticity markers are limited to high-level, source-backed checks such as GTX body-series/body-style evidence and the Hemi engine identifier; individual originality still requires VIN, fender tag, body stampings, engine pad, transmission stamping, and date-code inspection on a specific car.