Duster 340 not a muscle car...

A friend of mine ticked me off when he said "your Duster 340 is not actually a muscle car"

I think it more than qualifies...

Anyone else have any opinions on this?

In the 60's...they classified the duster/dart/camaro/mustang as "pony cars"...why...don't know,maybe because "muscle" meant "cubes" but IF you go to the track....I've seen ALOT of "pony cars" kicking @$$ on the "muscle cars".