Origami has nothing on this paper V8 engine
We’ve seen small engines before but they’re always constructed of the same stuff – metal. Which means they’re heavy and require milling, drilling and other physical tortures to work. But this working paper V8 uses air fed from a balloon to make a charming little noise with no carbon emissions. Maybe if you fold it into two you’ll end up with two V4s, just like the Porsche 919.