OK what do you think sounds best? Flat fours (air cooled of course

), inline sixes, rotaries, American/Aussie V8s, euro v12s, V10s, inline fours (God forbid), aero engines, F1, diesel locos?
I like it when a diesel loco goes through central station in Brisbane - ground shaking magnificence!

V8s on the dyno are pretty amazing too...