For a low-volume boutique automaker, the trouble with casting a complex, new turbocharger is that there's another new production technology can do the same thing cost-effectively: 3D printing.

This week on /INSIDE KOENIGSEGG, Christian von Koenigsegg describes how the One:1's hypercar's variable-geometry turbo works, and how it's made. By "made," that is, how it's run on a 3D printer — moving parts inside and all — and why it's done that way.