Comfort and Convenience
During travel the on-board computer matters most: it converts signals already flowing through the vehicle into running readouts such as consumption or range, so a decision about stopping can be made without guessing.
Safety and Driver Assistance
The electronic stability program acts when wheel speeds show the car turning more or less than the steering suggests. It brakes individual wheels to pull the vehicle back toward the intended line.
Multimedia and Connectivity
A USB port is a connection, not a format. The cable carries data the audio system must read, so playback depends on the file types and device modes the head unit supports.