Electronic power steering.
I'm guessing you haven't attempted checking your fluids yet. If you nose
around the engine compartment, you'll see that you have no power steering
pump. Your power assist is achieved through an electric motor attached to
the steering column.
I think the idea is a no-brainer and don't see why more cars haven't gone
to this. Not only are there fewer parts, but most of the issues with
reliability (belt, leaks) have been eliminated.