CGX car nut:

Elon’s First Principles shows its profound effects as this Model 3 sheds its window on the highway.  https://insideevs.com/news/488511/tesla-model-3-window-falls-freeway/  Can’t wait to be told that this is another example of manufacturing genius. 

It is a genius test of their new convertible top. That is just the most amazing thing. It even works at high speeds.  And covered under warranty.  They are just warming up for the ejection seat. 
I’m very certain all the other car makers are going to copy this feature like they have all the other engineering advances from the geniuses at Tesla with their brilliant alien leader at the helm.