Comfort and Convenience
The multifunction steering wheel places audio, phone and menu switches under the thumbs, so selection happens without reaching; the actual settings still live in the systems those buttons address.
Safety and Driver Assistance
On a wet or loose surface a cornering car can begin to rotate more or less than steered. ESP brakes individual wheels to pull it back, within the grip available.
Multimedia and Connectivity
A Hi-Fi audio system describes the amplification and speakers reproducing sound. It does not define which sources feed them, so how a given phone or player connects is a separate matter.