![Popular Science Radio show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/031/052/small/popular-science-radio.png)
Summary: What if you could trade your car in for the newest updated version every 18 months? Jay Rogers (@JohnBRogers) lets us know about his plan for the future: Trade in your 3D printed car, have it ground down and turned into materials for your new car!