Hmmm...I've had this discussion/argument with friends before. The original "real" muscle cars of the 60s were basically two door versions of family cars, with a big engine. Big power in a cheap package. Kind of like the base Accord coupes today. Heck, back in the 50s, the fabled Chevy 55-6-7 was just a run of the mill family couple and wasn't considered special. It was essentially the Accord coupe of the day. I would never consider an Accord or Camry, or any car in that class as a muscle car, but I get his argument. And if he is indeed comparing performance, you can take it a step further...reduce to the ridiculous. An 1987 Ferrari 328GTS did the 0-60 in about 6 seconds. A new 2017 Chrysler Pacifica minivan does it in about 7 seconds. That's pretty close. And a new 2017 Accord Coupe with auto does it in 5.6 seconds...faster than the Ferrari. Does';t make the accord a performance car though.