loud sound from a car or motorcycle engine

[alpacinou]

What is a noun to describe the loud sound the engine of a super car? Also, I need a word similar to "hubbub" or "rumble" in the second blank which means the continuous sounds in a busy city street.

https://www.youtube.com/watch?v=JL0UCd2gOcg

We headed towards the metro station. Every once in a while I could hear the ......... of some super motorcycle or supercar's engine over the ...........of the city.

 

[alpacinou]

Can I say "the roar of a supercar's engine?" What other options do I have?

 

[Charlie Bernstein]

What is a noun to describe the loud sound the engine of a muscle car?

It's usually roar.

Also, I need a word similar to "hubbub" or "rumble" in the second blank which means the continuous sounds in a busy city street.

https://www.youtube.com/watch?v=JL0UCd2gOcg

We headed towards the metro station. Every once in a while I could hear the roar of a motorcycle or muscle car engine over the noise of the city.

You might look up synonymns for noise. (You've asked about that before.)

This it the first time I've seen supercar and superbike. I guess they're words.

American bikes tend to sound low and loud. If you want to hear some, go to YouTube and enter Harley.