Analysis of information sources in references of the Wikipedia article "Supercar" in English language version.
what we now think of as muscle cars were more commonly called "Supercars," often (though not always) spelled with a capital S.
"the outlandish Lamborghini Miura, which is widely considered to be the first car to legitimately deserve the title
The term muscle car wasn't heard much hack when these vehicles were first hitting the market. In those days, the enthusiast magazines favored the term supercar.
