Rare, small, lightweight, maneuverable, simple design, easy to work on, looks mean, easy to build hp, tough drive train, on and on and on.
Here's one:
I don't know if anyone's been to musclecarclub.com, but they have a list of the 50 fastest muscle cars, though they don't follow their own criteria, because they declare that corvettes are not muscle cars because they don't have a back seat, but they include corvettes on their list of 50 fastest muscle cars.
If we're true to the definition of muscle cars, at least as they define it, you might find it interesting that Plymouth accounts for 33% of that list, and Dodge accounts for 14%...or MOPARs account for 47%, basically half. So, 1-in-3 of the fastest muscle cars were Plymouths.
All the others (Ford, Chevy, Pontiac, Mercury, Oldsmobile) are fighting for scrap percentages by comparison.
Long live the Cuda. Cheers.