Man these things are super cool:
https://bringatrailer.com/listing/2012-lexus-lfa-5/
I didnt know much about these until I saw some on the Nurbrugring in 2013. There were 3 of them tracking it up and they sound great.
from 4mins 13, sorry the phone camera back then wasn't great
https://www.youtube.com/watch?v=U7RmiVgXIfI