It’s too early to say Vision Pro is dead. It is highly constrained by component production. Apple physically cannot produce enough to merit a marketing campaign. For now, it is a public devkit, and I don’t expect the software to be fully baked until 3.0.
Do you really need CarPlay? I’ve been relying on phone mounts in my car for years. Now with MagSafe, I stick my iPhone on and stream audio over Bluetooth, no plug/unplug. Aside from that, viewing navigation on my iPhone allows me to move around the map so I can see what turns are coming up. The CarPlay decks I’ve seen don’t allow moving around the map on screen and only show text directions on iPhone. For me, stick-and-go is a better and seamless experience.
If you have any interest in this route, I highly recommend the Nite Ize Steelie system for mounting. Their MagSafe system works with Apple’s MagSafe charger (or without if you don’t need constant charging) with a variety of mounting options.