NFC payments are nice, but honestly I could use a case with a credit card shoved in it to get the same effect. A good camera is important, but the "screen mirroring" of Android Auto and Apple Car Play are hard to go without.

Especially since most modern cars don't allow you to replace the stereo. I've got a double-din, I could mount a tablet or raspberry pi, setup some sort of a system to automatically turn on hotspot on bluetooth connect, sync my podcasts between phone and car, and I'd have something about 80% of the way there and about 90% more janky.