Comfort and Convenience
The on-board computer matters mainly while travelling: it gathers data from vehicle sensors and presents running values such as consumption or range, so refuelling and rest stops can be judged from the display rather than guessed.
Safety and Driver Assistance
The anti-lock braking system protects rather than informs. By releasing and reapplying pressure at a wheel that is about to lock, it keeps the tyres rolling, so steering input still turns the car during hard braking.
Multimedia and Connectivity
The 12V outlet does not select content itself; it supplies power to accessories a passenger brings aboard, such as a charger or adapter, keeping a phone alive so its own controls remain usable throughout the drive.