> 3) no backing camera support. Also a safety hazard.
You wouldn't even want the phone to show the backup camera; you said it's too small for your eyes. The car has to be able to show the backup camera in the console anyway.
> 4) no handsfree support i.e control volume, skip songs without looking or lifting hands from the steering wheel
I have disabled bluetooth in my cars because it's a worse experience than wired CarPlay, but if I had to, I could just go back to it and my cars support controlling the music from the physical car controls (including the ones on the steering wheel), just like when it's connected by CarPlay. This has worked for ~15 years at least.
You wouldn't even want the phone to show the backup camera; you said it's too small for your eyes. The car has to be able to show the backup camera in the console anyway.
> 4) no handsfree support i.e control volume, skip songs without looking or lifting hands from the steering wheel
I have disabled bluetooth in my cars because it's a worse experience than wired CarPlay, but if I had to, I could just go back to it and my cars support controlling the music from the physical car controls (including the ones on the steering wheel), just like when it's connected by CarPlay. This has worked for ~15 years at least.