Comfort and Convenience
An on-board computer reports values the car already measures, such as consumption averages and range estimates. It describes conditions rather than changing them, so it informs planning without altering how the cabin itself feels.
Safety and Driver Assistance
Electronic stability program intervenes when the car's actual rotation diverges from the steering angle the driver has selected. It then brakes individual wheels to pull the vehicle back toward the intended line.
Multimedia and Connectivity
A 12V power outlet supplies electricity only; it carries no audio or data. Sound and files travel over separate paths, which is why a device may charge there while playing through another connection.