Comfort and Convenience
The on-board computer reports data rather than changing anything: it calculates consumption and range from sensor readings. Single-zone climate control is the opposite, where a set temperature actively commands the system's output.
Safety and Driver Assistance
The driver's airbag responds only to a sufficiently severe frontal impact, and sensors ignore kerb strikes or heavy braking. It cushions forward movement into the wheel and does nothing in a rear collision.
Multimedia and Connectivity
A USB connection carries digital audio data, so the file is decoded by the car's own system rather than arriving as an already amplified analogue signal in the way the AUX input receives one.