* Reading of messages
* Replying to messages
* Correct album covers for things like podcasts, audiobooks
* Playlist support
* Waze or Google Maps (yeah Tesla's maps are good, but they don't have road closure information which makes them pretty useless here in Michigan during the construction season. I often forgo Tesla's navigation and use Google Maps instead)
Sure, Tesla's software is better than pretty much any other automaker, but it's still lacking some critical features, at least in my opinion.
Most people just pull up tesla websites that support the tesla browser.
google "tesla friendly web sites"
Having to use my phone to select podcasts or songs or deal with texts is pretty damn backwards.
The integrated music service for Tesla is third rate and a bit embarrassing. I don't know why I have to be stuck with their terrible deal that they made many moons ago.
Just give me CarPlay or Android, Tesla.
On the flipside, some manufacturers impose limitations on what you can do when driving, which is annoying, so after market might get around some of that?
In addition, to my knowledge older Volkswagen AG vehicles are ripe for replacing the infotainment with a newer, carplay enabled system, but on newer models it seems that it is rather locked down and not as easy a solution as you suggest.
But many newer cars have totally custom, integrated audio systems and retrofitting is either extremely expensive or impossible.
Firstly from an aesthetic point of view they're hideous, you'll end up having to buy a plastic piece of crap to hold it in and aftermarket stereos are just not great, it won't be flush to the rest of the dash.
Secondly depending on your car a bunch of stuff that used to work with your car (forward/reverse sensors) might not show up any more.
Thirdly stalk adaptors costs a fortune.
You really want a car that has got that experience sorted and after driving a modern VW, I'd say a VW or Audi is probably the way to go. They'll have Carplay/Auto/Mirror and that's what you want. The experience of an aftermarket stereo is just not great.
My last car, the "stereo" was just a control board with a screen and some buttons. The head-unit was actually under the seat. The space directly behind the stereo controller was air ducts and a center speaker.