Only just...
Insane.
All of you completely owned by a hotrod with a hemi. http://www.youtube.com/watch?v=AxAW3oV8tw8
Some great sounding engines here, the best ever sounding "6 cylinder" engine imo is the Alfa V6
Ferrari 641/2 (V12 F1 car from 1991-2)
http://uk.youtube.com/watch?v=UELuXvbRmM0
Metro 6r4
http://uk.youtube.com/watch?v=SqMf7ZVtW_4&feature=related
Nah. Good though the classic Alfa six pot is, the Chrysler Australia 265ci Hemi six has it beat IMO.
http://www.youtube.com/watch?v=oxXadTWxpIs&feature=related - on the rolling road
http://www.youtube.com/watch?v=KnbmW5kz9i0&feature=related - in car
These two vids really don't do it justice. In the metal, they sound even better.
The Countach beats everything in this thread.