Galicia, Spain - If there is one thing that brings out the anorak in all of us, it's model engineering. Even performance junkies are fascinated by the sight of perfection in miniature - especially if it actually runs.
Jose Manuel Hermo Barriero, known as 'Patelo' in the model-engine world, is a retired naval mechanic who builds the world's smallest multi-cylinder engines.
Watch as he assembles and test-runs a 28,4cc W18 with a bore of 14mmm and stroke of 10.25mm.
The engine's 469 individually hand-crafted components took 1850 hours (about 10 months, working eight hours a day, five days a week) to make and are held together by 388 tiny screws.
There's some debate as to whether Patelo's creations are in fact working models since they run on compressed air rather than combustion, but that doesn't take anything away from the beauty of seeing so many tiny components working in perfect unison.