How do you define them

[Boza]

Hey guys I was watching a review on jay leno's garage about the new challenger hellcat.
In the video the marketing guy from chrysler was saying this car is more of a muscle car then a pony car.

But when it comes to mustang's, camaro's cuda's challenger's half of the time people either call them muscle cars and the other half of the time people call them pomy car's.

What's the difference between a pony car and a muscle car and what define's them.

Also is like a mustang, or camaro a pony car or muscle car half the time they call them muscle car's the other half of the time they call them pony car's

I can speak english good but when it come's to reading and writing well it's my second language so my understanding of internet write up's on the definition og these car's is not good.

So can someone please explain in simple terms's what the two are.