Apple Car: Bad Idea After All
So I've always wondered if Apple actually building a 'car' was ever really the goal. It seems like a skunkworks where they try crazy things and then incorporate into Carplay.
Future seems to be ever expanding Carplay support. I use it and probably would not buy another car that did not have it integrated. I imagine car manufacturers are somewhat tired of always building HUDs and in vehicle control systems. So gradually standardizing on a way to take all the displays/touchscreens in a vehicle and let them be run by Carplay seems like the future. Eventually, they can start handing more and more of the software side (not their specialty) off to people cellphones via some interface, particularly around media. 
As the ubiquiti of the M1/M2 type chip is found in all of our pockets (embedded ML silicon), the car companies will no longer have to actually embed it in a vehicle as an add on. Plugging in your phone with an M1/M2 type chip will unlock Siri or similar AI functionality in the vehicle. Sure it will drive without it, just like it does now, but it wont be 'cool' and have all the assist, nav, and media functionality everyone wants.