Here's what we looked at this week:

To build a low-cost EV, Citröen dusts off the 2CV.

ID firm Layer develops corrugated plywood that's strong and lightweight.

Poka-yoke: Idiot-proof design.

Fiat's strange, transforming Multiplay concept vehicle.

Hinterher's flexible bike cargo trailers.

Akinori Goto's incredible 3D-printed zoetrope.

Memobottle's easy-to-clean water bottle lid design.

The wild-looking seating in Renault's E-Space Concept.

Industrial Design student work: A handwashing station for kindergarteners.

The International Lineman's Rodeo: The Olympics for lineworkers.

Tesla unveils their bonkers flying Roadster.