3D printing has given new life to additive manufacturing possibilities, making possible what earlier was unthinkable. Take for example creating miniature replicas of car engines, just like the one by Keith. Now, Eric Harrell has made a fully working engine modeled on Chevrolet Camaro V8 LS3 engine. The replica engine is 3D printed taking visual clues from images, repair manuals and diagrams. In fact Eric himself admitted that he didn’t have the real engine to make his task easier.