alt Hacker News> Since the car software is tied into a number of important safety features and regulated controls, custom operating systems will never be supported.
Then that's a poor design that should go the way of the dodo. Someone hacking the entertainment system should not be able to take over control of the engine. The entertainment system on planes do not allow one to hack into the autopilot. There should be no need for a firewall, they should have no shared wires between them.
"Safety critical" isn't just the drivetrain. I don't work in automotive and won't pretend to understand all the rules, but off the top of my head, some things that my car uses the head unit for:
* Backup Camera
* Turning traction control on/off
* Turning auto hold (maintaining the brake pedal while stopped) on/off
* Window defrosting
Many cars are even more integrated - are there any physical buttons inside a Tesla or is it all through the touchscreen?