I don't think there was any debate over USA muscle it was rather daily drivers the car to get you to and from work. In a daily driver Asian cars win hands down.
Now if you’re talking horse power obviously nothing can touch American muscle. My 73 firebird with a 454 BB chevy full interior and glass 3800 lbs. runs high 11's in the quarter at bandi. Its street legal I use to run tower road, monaco, in longmont ran woodland and the dog pound had a great time.
I am getting to be an old bastage and would not ever think of street racing again plus it is different now. Back in the day I lived to street race but we were smart about it and people had some serious hardware. Now it's just jackass kids with slow cars killing people. Hell tower road the cops would come and watch it was a great time.
I can assure you I am not knocking American Muscle but when it comes to a daily driver no American car can ever compete.