My favourite sound will always be Porsche flat-6, fullstop
The other sound which I will never forget was from a Mercedes AMG V12 Pacecar at a F-1 Race some years ago here in Germany.
Forget all those F1 engine sounds, just painfull loud crap.
But that V12...YAWDROPPING...it sounded like a low altitude flying ME-109, unbelievable!
