1970 Plymouth Superbird 440+6 Draws Strong Auction Interest

A 1970 Plymouth Superbird 440+6, listed on Bring a Trailer, reaches $230K. The rare NASCAR homologation model highlights steady demand for preserved muscle cars.

A NASCAR-built icon limited to fewer than 2,000 units has already reached a $230,000 bid—and the auction is still ongoing. The featured car is a 1970 Plymouth Superbird 440+6, notable not only for its rarity but for its highly preserved, well-documented condition.

This example is one of approximately 1,920 Superbirds produced to meet NASCAR homologation requirements, and one of just 408 cars equipped with the 440 Six Barrel engine paired with an automatic transmission. The 7.2-liter V8, fitted with three two-barrel carburetors, was factory rated at 390 horsepower and 490 lb-ft of torque, placing it between the base 440 and the more exclusive Hemi option.

Its history adds further weight. The car was originally given to the 16-year-old son of a Dodge-Plymouth dealership owner in Kentucky, remained within the same family for decades, and was used sparingly. After 2006, it accumulated only around 125 additional miles, bringing the total to approximately 22,000 miles.

The defining feature is its condition, often described in the collector world as a survivor. The car has not undergone a full restoration and retains original components, supported by a Galen’s Tag Service report—an established authority in Mopar authentication that verifies VIN data, component markings, and drivetrain originality. Such documentation typically plays a key role in collector interest.

The Superbird itself was developed as a follow-up to the Dodge Charger Daytona and was part of Plymouth’s effort to return Richard Petty to its lineup. Its aerodynamic nose cone, pop-up headlights, and tall rear wing were not stylistic choices alone but functional requirements for NASCAR competition, helping define one of the most recognizable designs of the muscle car era.

Market data reflects steady demand. Recent auction results show 440 Six Barrel Superbirds commonly selling in the $200,000–$300,000 range, while Hemi-equipped cars can command significantly higher figures. The current $230,000 bid aligns with that range, though condition and documentation may influence the final outcome.

With several days remaining in the auction, the final price may shift. The listing underscores a broader trend: rare, well-preserved muscle cars continue to attract consistent interest in the collector market.