30 Most Expensive Muscle Cars That Made Collectors Rich Overnight

19. Ford Mustang Boss 429 – $605,000

Getting $605,000 for any car is a rare achievement, let alone for a Boss 429. Despite its rarity and mystic allure, the Boss 429 had never achieved such a high amount until recently (via Top Speed).

This number is a record for all Boss 429 cars, and a particular example had a NASCAR engine with special Ford C9AE-A heavy-duty half-inch bolt rods, forged pistons, and steel crank, among many other factory options. Of course, it was perfectly restored.