Is the Oldsmobile F-88 Concept Car a Mucle Car?

Hello All.

I'm new to muscle cars and I'm not sure exactly how to define them. My favorite car is the Oldsmobile F-88 concept car. Only three were ever made, and the last one is in the Gateway Auto Museum in Colorado

( http://www.gatewayautomuseum.com/cars-and-galleries/f-88-gallery/ )

Is the F-88 a muscle car? Or is it just a "Classic Car," or a "Rare Car." Is it about how it looks, or horsepower, or what?

Thanks.