1. Corvettes are not muscle cars.
2. Dodge Vipers are not muscle cars.
3. Nothing, absolutely nothing, made past 1973 a muscle car.
4. Nothing manufactured overseas is a muscle car.
5. Muscle cars were a broad category of automobiles produced mostly in Detroit in the late 1960s-early 1970s that were, traditionally, heavy, rear-wheel drive, high-output V8s. They were produced by such companies as Dodge, Plymouth, Chevy, Pontiac, and so on. Common examples include: Pontiac GTO, Dodge Challenger, Dodge Charger, Chevy Chevelle, Plymouth Barracuda, etc.
6. Ford Mustangs, Chevy Camaros, Plymouth Valiants, and Holdens (etc) are not muscle cars. Their build dates, smaller engine sizes, and body styles exclude them from the designation.
The muscle car era ended in the early 1970s when rising gas prices made high-output engines undesirable. All subsequent reincarnations of muscle cars were developed after a noteworthy absence (1973 onward) and therefore do not share a direct lineage with their earlier (and, let’s be honest, better) counterparts.