Just want to kick a few ideas around here...

I can think of some that I really love, but there have been literally thousands made over the years... so what about you post the name, capacity etc of the inline six you like the most, details like bore/stroke hp standard, hp screwed out of them modified, what sporting successes they might have had, that sort of thing?

If nothing else, it will give us all a chance to mentally hear the unmistakeable and incomparable howl of the best sounding type of engine ever built!