http://www.pistonheads.com/news/default.asp?storyId=20537
OMG! That is amazing!
Looking on YouTube you can actually build proper working lego engines using pneumatic pistons!
I must have one!
Love it. I wonder what revs you can realistically put through it before Lego does it's usual thing and just implodes.
Would be great to get it revving with an authentic V8 sound track!