The Ford Mustang was the first vehicle to create its very own category - the "pony car". Within a few years, competitors with Chrysler, GM, and AMC followed suit and building pony cars utilizing Ford's formula.
The ‘71 Plymouth Barracuda was very underrated car at the time.
With a few changes coming to the ‘71 the new grille gave the appearance of the car having teeth like a Barracuda, and, for the first (and only) time the Barracuda had quad headlamps.