I’m with Casey on this: I will not buy a car without CarPlay. Of course, I haven’t bought a car since 2013. That one is a Tesla Model S and I think its UI is pretty decent for maps and playing audio, but I have rented enough cars since then to know that I would much prefer CarPlay support. If I had to replace my car today, I’d probably buy a Volvo EX90, which is the electric version of the XC90 Casey talks about.

Rentals it is more important. Your own car doing the one time setup every few years is no problem but when it is a rental you don't want to take that time.