How does the electromechanical steering in the Audi A8 work?

I've heard that the Audi A8 uses electromechanical steering, but I'm not sure how it differs from traditional hydraulic steering. Can someone explain?

The electromechanical steering in the Audi A8 uses a combination of electronic sensors and a motor to assist with steering, rather than relying on a hydraulic system. This allows for more precise control and better fuel efficiency.

The Audi A8's electromechanical steering works by detecting the driver's steering inputs and adjusting the amount of assistance provided by the motor. This provides a more dynamic and customizable driving experience.

Compared to traditional hydraulic steering, the electromechanical system in the Audi A8 is also more reliable and requires less maintenance over time.