* send demands (mix down the music to zero and bring up my channel, there's an emergency)
* respond to information requests (Battery is at 55.31%, no systems have errors, headlights are on, speed is 45.8mph)
* and let my computer request non-critical things (please turn on the seat heaters, set the HVAC to recirculate medium, set thermostat to 68F)
Keep the security and safety things far away from the shiny user interface things, and let me replace the user interface things every few years instead of replacing the car.