Comfort and Convenience
The listed engine start button replaces the barrel of a key-operated ignition switch on the fascia, so the column carries no turning cylinder; the dash panel itself becomes the surface the driver presses to wake the car.
Safety and Driver Assistance
The listed driver's airbag is triggered by a sufficiently severe frontal impact, inflating from the steering wheel hub so the torso and head meet a cushion instead of the rim and column.
Multimedia and Connectivity
The listed 12V outlet supplies power only, feeding chargers or accessories, while the listed USB port carries data as well, letting the audio system read and control files from a connected device.