Muscle Car Fan

Posts Tagged: Mustang Boss 429

Hidden in Phoenix, Arizona is a private garage holding a real 1970 Plymouth Superbird, a Boss 429 Mustang, and a Viper from every generation ever built. Its owner did not set out to build a museum — he set out to buy back the cars of his own past, starting with the Plymouth Road Runner he first drove as a teenager. Hagerty’s Larry Chen got a rare look inside.

Nearly two dozen muscle cars, from a 442 W-30 convertible to a numbers-matching Cuda 440 Six Barrel, failed to sell at the Mecum Indy May 2026 auction — and one no-sale has nothing to do with price. A Boss 429 crossed the block repainted black over its original Grabber Blue, and viewers aren’t forgiving it. Watch to see the full list of cars that didn’t find a buyer, and why.

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