My uncle had a 928 back in the 90s and at an Irish horse show and took an old chap for a spin, the old guy could hardly speak but did ask "she diesel??"
Cannot wait for my BITDI with its fake V8 sound. The C63 is making me want the plug in box to increase it..
http://youtu.be/P-qP4QWEnOM
I had an SQ5 last year for a couple of months and the sound is quite authentic I have to say