An overwhelming majority of sources assert that the Adam of the American muscle car species is the 1964 Pontiac GTO. It was certainly the first muscle car to be marketed toward leadfooted baby boomers, but it was not the first high-performance American passenger car. Nor was it the first American car to combine one of its maker’s big car engines with one of its small car body and chassis.
In short, the history of the muscle car stretches back many years before the O.G. Goat showed up. Just how rich is that history? Take a look at the following 10 factory hot rods and we think you’ll agree it’s pretty doggone rich.