Yes, that is a functioning V8 engine made entirely from paper. And strictly speaking, it's not origami. The fascinating art of paper folding doesn't look kindly on using tape, which this little eight cylinder uses lots of. There are also obvious dashes where the cutlines were. But honestly, who the hell cares? This is a paper engine, but the pistons still bop up and down when you spin the crankshaft. It's absolutely remarkable and (we imagine) utterly infuriating to put together.
And in case you're thinking that this is somehow a fragile little thing, it's absolutely not. Be sure to watch the video to the end. It sounds absolutely remarkable. And if you want more, scroll down – dude built an actual working throttle to control the little paper engine.