Comfort and Convenience
A start-stop system is managed by the driver rather than set once: it cuts the engine when the car is held at rest and restarts it as the brake is released, and a dashboard switch disables it for the current journey.
Safety and Driver Assistance
The driver's airbag addresses the frontal impact, where the body continues forward after the car has stopped. It inflates from the steering wheel hub to spread that deceleration across the chest and head instead of the rim.
Multimedia and Connectivity
The audio system is the equipment that produces sound; a connection such as Bluetooth or the AUX input only carries a signal to it. Sound quality, volume and tuning remain the system's responsibility, whatever the source.