Spanish engineer crafts "world's smallest" V-12 engine
Check out the 10 minute video at the end showing how he fabbed, assembled and ran the little V-12 - it is jaw dropping.
I love that kind of stuff! 1200 hours put into a desk top trophy seems a little extreme though! Did you notice that it's not actually running on gas? It's compressed air.
It's like those painstaking mininature reproductions of silverware. They reproduce everything with incredible precision on a tiny scale.