Today, Aptera held a Zoom webinar with Nathan Armstrong, about Aerodynamics & Composites. He said Aptera Motors was investigating the use of coated polycarbonate for windows.
This would have the advantage of reducing weight.
I have two concerns.
First: What is the cost of a polycarbonate window compared with one made of traditional automotive safety glass?
Second: How easily would a replacement be found. A replacement of auto safety glass would probably be easier found than one of polycarbonate.
If polycarbonate is used, I hope the vehicle can accommodate a window made of glass and replacement windows of glass are available.