Originally Posted by Gjm127
E9X S65 V8 is the best sounding and will remain the best sounding engine BMW will ever make. I do think they're making a push to have the F8X engine VERY loud to compensate for the cylinder downgrade, perhaps it'll end up being a louder stock car than the E9X.
I think you are forgetting the E60 M5's V10. Hehe!