Only 135 Plymouth Superbirds ever left the factory with a 426 Hemi under that towering rear wing, and one of them just crossed the Barrett-Jackson block for $396,000. A matching Hemi ‘Cuda wasn’t far behind at $302,500. Here’s what the pair says about which classic muscle cars are actually gaining value in 2026.
A no-reserve auction docket sounds like a garage sale until a factory-built Plymouth with a wing taller than its trunk lid rolls across the block and the bidding doesn’t stop until $396,000. That’s what happened to a 1970 Plymouth Hemi Superbird at Barrett-Jackson’s 2025 Scottsdale Auction, one of just 135 Superbirds ever built with the 426 Hemi under that nose cone. It wasn’t an outlier. A matching Hemi ‘Cuda from the same event brought $302,500, and together they anchored a Top 10 muscle car countdown that Barrett-Jackson turned into one of its most-watched videos of the year. If you’ve ever wondered why a car Plymouth practically had to give away in 1970 now trades for the price of a house, this is the auction that explains it.
The Barrett-Jackson Countdown That Had Viewers Doing Double Takes
Barrett-Jackson’s “Top 10 Muscle Cars at Barrett-Jackson’s 2025 Scottsdale Auction” video, presented in partnership with Speedway Motors, runs down the highest-bid muscle cars from the January 2025 Scottsdale sale — part of an event that moved more than $198 million in total sales across 2,013 no-reserve vehicles and drew over 6,000 registered bidders to WestWorld of Scottsdale. Every car on that docket sold with no minimum price protecting the seller, which is exactly why the muscle car results are such a clean read on what buyers are actually willing to pay right now, not what an owner hopes to get.
Viewer reaction to the video leaned hard into surprise. Commenters flagged how many Ford Mustangs turned up in the countdown and singled out the Superbird’s number as the moment that stuck with them, calling its “supernatural value” the standout of the show. That kind of reaction is the whole appeal of a Top 10 format — it compresses a week of six-figure hammer drops into a few minutes of “wait, how much?” It also says something about how these auctions are watched now: as much for the entertainment of seeing a car nobody expected sell big as for the actual market data underneath it.
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The Wing Car NASCAR Forced Plymouth to Build
The Superbird exists because of a rule, not a marketing plan. NASCAR required manufacturers to build at least 1,920 street versions of any aero-warrior they wanted to race, so Plymouth built exactly that many for the 1970 model year — a nose cone stretching the front end nearly 20 inches longer than a standard Road Runner, and a rear wing tall enough to clear the trunk lid when it was open. Dealers hated them. The styling was polarizing, the cars sat on lots for months, and some were reportedly converted back to standard Road Runner trim just to move inventory.
Only 135 of those 1,920 Superbirds left the factory with the 426 Hemi, split 77 with automatic transmissions and 58 with the four-speed manual. That scarcity is the entire reason a car nobody wanted new now anchors an auction countdown more than five decades later. The 1970 Hemi ‘Cuda that sold alongside it for $302,500 tells the same story from a different body style — Chrysler’s 426 Hemi option was always rare and always expensive on the showroom floor, and the cars that carried it new are now the ones commanding the premium at auction, while their small-block siblings from the same model year sell for a fraction of the price.
Why the Mustangs in the Same Countdown Tell a Different Story
Ford Mustangs showing up repeatedly in a muscle car Top 10 surprised enough viewers to become the top comment on the video, and it’s worth unpacking why. Mustangs were built by the millions across the 1960s and ’70s, so raw scarcity isn’t usually what drives their value the way it does for a low-production Mopar. Instead, the Mustangs that crack a Barrett-Jackson Top 10 tend to be the documented, numbers-matching Shelby and Boss variants — cars where the factory build sheet, the stamped engine block, and the paperwork all agree with each other. It’s a reminder that a Top 10 list built purely on hammer price mixes two very different kinds of value: cars that are rare because almost none were built, and cars that are common but exceptional in condition and provenance.
Why Barrett-Jackson’s Scottsdale Sale Has Become Muscle Car’s Report Card
Barrett-Jackson has run collector car auctions since 1971, and the Scottsdale event has grown into the January fixture the entire hobby uses to set expectations for the year. The no-reserve format is what makes it useful as a market signal instead of just a highlight reel. When every car has to sell regardless of price, the numbers reflect what a room full of committed bidders will actually spend on a given Wednesday in January, not an inflated asking price nobody ends up meeting. That’s why collectors and dealers watch the Scottsdale results every year to gauge where Hemi cars, aero cars, and documented Shelbys are trending before they price the rest of the season’s inventory.
It also explains why documentation matters so much at this level. A Superbird or Hemi ‘Cuda with a matching-numbers drivetrain and a verified build sheet commands a real premium over a clone or a re-created example, because buyers bidding six figures on a no-reserve lot are paying for certainty as much as they’re paying for horsepower. The gap between a numbers-matching Hemi car and a tribute car built with the same engine swapped in later can run into six figures on its own — sometimes more than the donor car’s original sale price entirely.
What the Countdown Says About Where Muscle Car Money Is Headed
The takeaway from this year’s Top 10 isn’t just that a Superbird crossed $396,000 — it’s that the cars with the rarest, best-documented factory-original combinations keep pulling away from everything else in the muscle car market, even as more common Mustangs and Camaros from the same era hold steadier, more accessible values for buyers who aren’t chasing a six-figure Hemi car. For anyone building or refining a collection, that’s the signal worth watching: originality and documented rarity are what separate a car that keeps appreciating from one that simply gets older.
Watch the full video above and let us know your thoughts in the comments.
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