One for the lathe owners

[Stuart]

Smallest V12 in the world

http://www.wimp.com/tiniestengine

[Hans Efde]

This video is also going around dutch video sites and it's interesting to see how he makes this block. What disappoints me at the end is that it doesn't actually run with sparkplugs. It works on compressed air. I've seen better ones. F.e. take this one:
http://youtu.be/lc6jCGHj6Nc