Comfort and Convenience
The on-board computer reports values the vehicle already measures, such as fuel use or range. It reads and displays conditions; it does not alter them or set cabin temperature.
Safety and Driver Assistance
Stability control acts only on the vehicle's own rotation, braking individual wheels to keep the intended line. It cannot sense a car ahead, so the gap you leave still decides whether there is room to stop.
Multimedia and Connectivity
A 220V outlet carries electrical power, not audio or data. It can run a laptop or charger, but whatever plays through the speakers arrives by a separate source such as USB or Bluetooth.