I found this post from Classical Drive to be pretty informative:

This is possibly the most amazing scale model ever made. An Italian mechanical engineer whose name is (not too clear from the link) Pierre Scatti spent three years of his spare time making molds and drawings, copying photos, to create a precise working model of a Ferrari 312B complete with fuel-injected, dry-sump, 1000 cc (not 100 cc as I first wrote) flat-12: 24 valves, 5 gears and reverse. It took 20,000 hours of sweat and dedication because of Peirre's wish to build a genuine Ferrari at scale size. In his younger years he watched the race cars in Italy and dreamed of having their sounds (music to many of us) in his living room. What makes this model so amazing is that it actually works. With no electric motors motivating, the 1/3 engine fires up just like a real one. Click the YouTube link, hear Pierre explain what it took, then glory to a 1/3 engine that sounds like the big guy. Oh, and by the way, he wants to sell it in order to begin another scale replica. Love or madness?

Found at: Classical Drive