What exactly is a "muscle car"?

[Mortimer]

I heard the term "muscle car" sometimes, but i dont know what that exactly is?

A big powerful truck? A sports car?

Is a Ford Mustang a "muscle car"?

https://i.ibb.co/LkCr3Z4/Ford-Mustang2.jpg (https://ibb.co/yf8prQL)
https://i.ibb.co/nchG48X/Ford-Mustang4.jpg (https://ibb.co/vP2FfvN)

[Lioncourt]

It means an American sports car with two doors and powerful engine meant for one to drive at high speed and eventually splash their brains on the road.

[Mortimer]

It means an American sports car with two doors and powerful engine meant for one to drive at high speed and eventually splash their brains on the road.

I think Ford Mustang qualifies then

[Petalpusher]

Affordable V8 usually from the 60's. The Pontiac GTO 64 coined the term.

The Mustang would fit the modern definition of it. It has a V8 and dirt cheap.