Comfort and Convenience
The on-board computer acts on the instrument panel display, where it collects readings from sensors around the car and presents consumption or range figures in the driver's direct line of sight rather than on scattered gauges.
Safety and Driver Assistance
A driver's airbag works after a collision has already begun, a stage where observation can no longer help: a sensor fires the inflator within milliseconds, spreading chest and head loads across fabric instead of the steering wheel rim.
Multimedia and Connectivity
The 12V power outlet contributes energy rather than signal. It feeds accessories such as a phone adapter or dash camera directly from the vehicle's electrical system, keeping devices running while audio sources handle playback separately.