22: 1963 Studebaker Avanti R2
Not the most common of the muscle car era, the 1963 Studebaker Avanti R2 had a unique look to it. It was somewhat of an exotic car as the Avanti R2 was performance-oriented. Its 289 HP hit the wheels in a way a Studebaker hadn’t done before. The Avanti R2 had a look to it that was downright ugly by some estimations, but beauty’s in the eye of the beholder.
From a rarity and performance standpoint, the 1963 Studebaker Avanti R2 is about as rare as you can get. The Studebaker is not the first car that comes to mind when you think of American performance. For its price and styling, it’s about the most unique muscle car you can find.