https://www.youtube.com/watch?v=DdEjfy4xti4

At Investor Day, Tesla teased a rare earth free motor.  This has led to spculation about Tesla partnering with Niron for their Iron Nitride material.  However, I think think humble ferrite magnets may actually be a better option.  Let me know what you think in the comments below.

Timeline
0:00 Introduction
01:00 What is a Rare Earth?
02:20 Why Remove Rare Earths?
03:09 Why did Tesla Use Rare Earths?
05:24 Niron Iron Nitride Magnets
11:42 'Tesla' Magnets
14:20 Tesla Ferrite Motor
23:45 Summary