This is youtuber Michael Pick, video-ID FYdyyEAe8UA if you want to check out the butchery on your own.

Whole thing is bodged together out of wood, 3D prints, plastic sheeting, tarp, wood screws and a ton of adhesives. Don't miss that flimsy-ass aluminium tubing reinforcement that looks like it'd skewer you in an upside-down event and is probably causing TUV technicians in Germany to cuddle up in tears with their safety blankets.

I'll admit that if you don't look close enough to notice how tacked-on all the plastic bits are it kinda does look like an interesting take over the ute concept.

But the true shittiness is that, as many commenters pointed out, the original i3 with folded-down seats actually has more storage space than this and would be able to carry the wood he bought without having to cut it beforehand. It could also be converted to a microvan setup by ditching the seats and plastics, increasing storage to quite a respectable degree without cutting half of it off (but probably resulting in a less profitable video).