transportation, business, shopping and ownership concept - customer and salesman shaking hands outside
That’s right, not only is this incredibly cool little engine built out of Lego, but it actually runs. It is not an internal combustion engine however. Instead, it is pneumatic. That means that it runs on air pressure! In fact, this is actually an older video and the poster, Nic Jasno, is now using similar engines to power a model BMW!