This Plymouth Superbird’s Biggest Secret Isn’t Under The Hood

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Friday, 19 Jun 2026 08:51 0 2 autotech

This Plymouth Superbird’s Biggest Secret Isn’t Under The Hood

A 1970 Plymouth Superbird with long-term family ownership, deep personal history, and a possible missing spot in the known Superbird registry has surfaced through Mopars5150. Tim Wellborn, a major name in Mopar circles, pointed the crew toward the car, but the real hook goes beyond the nose cone and towering wing. This Superbird carries decades of family memories, owner stories, and hood signatures that turn it into rolling scrapbook material.

One-of-308 Ultra-Rare 1970 Plymouth Superbird Is An Unrestored Survivor For The Ages

This incredible Superbird is an untouched survivor with a 440 Six-Barrel with a Pistol Grip to command gears.

A Superbird That Slipped Past The Mopar Map

Mopars5150’s latest stop came before the team headed back to Texas, and it sounds like the detour paid off. Wellborn had mentioned the car before, and surprisingly, this longtime family-owned Superbird does not appear in the Superbird registry. For a car built in tiny numbers and tracked closely by Mopar people, that is rather… shocking.

The Superbird already lives in rare air. Plymouth built it for one model year to satisfy NASCAR rules, which required one production car for every two Plymouth dealers. RM Sotheby’s lists 1,920 Superbirds for that homologation run, while other sources cite 1,935 units. Either way, Plymouth did not exactly flood America with pointy Road Runners.

440-Powered Superbird Passes On Record Bids, Demands Hemi Prices

This Superbird is absolutely stunning and is bringing in record-setting bids. Still, the owner’s holding out for Hemi-car money.

This Wing Car Still Stops The Room

1970 Plymouth Road Runner Superbird wing

The best part here may not be the rarity – it may be the survival story. The owner, described as a strong character with a sharp memory, gives the car a human pulse. The hood signatures add another layer – each autograph points to a person, a meeting, a show, or a moment when someone felt that signing a Plymouth with a park-bench-sized wing made perfect sense.

For spec fanatics, the Superbird offered three flavors of big-block fun. The 440 four-barrel is rated at 375 horsepower, the 440 Six-Barrel at 390 horsepower, and the 426 Hemi at 425 horsepower. Plymouth never used outside engine badges to tell people which V8 sat under the hood, and this means a casual passerby could stare at the wing all day and still miss the real business end of the car. The VIN and drivetrain stampings tell the truth, not the decals.

HotCars Take

Close-up shot of a 1970 Plymouth Hemi Superbird

This is exactly the kind of rare survival car story we love. The car matters because it is rare, but the family history makes it special. A registry-missing wing car with a long memory, a talkative owner, and a signed hood has more charm than another over-polished auction queen under studio lights. The Superbird came from one of NASCAR’s wildest chapters, when Chrysler engineers chased speed with wind-tunnel work, nose cones, and an inverted wing that helped plant the rear tires at race pace.