As an employee of another car company all I can say is:
Damn!
Similiar to Tesla, Apple and Google are quite far away from the degree of industrialisiation the automotive industrie has today. Without this you can't build millions of cars cost effectivly. Also, cars are immensely complex in all the small things that need to be engineered deligently. So, that move makes greatest sense.
Sigh, haters gonna hate.