Drivable 500,000 piece Lego car runs on compressed air

Some discussion:

https://news.ycombinator.com/item?id=6933579 (drive.com.au)

Other submissions:

https://news.ycombinator.com/item?id=6932885 (gizmodo.com)

https://news.ycombinator.com/item?id=6932820 (theidler.org)

https://news.ycombinator.com/item?id=6926804 (youtube.com)

https://news.ycombinator.com/item?id=6925534 (superawesomemicroproject.com)