How does the Audi A8 All-Wheel Steering system work?

I've heard that the Audi A8 has a unique all-wheel steering system that improves handling and maneuverability. But how does it actually work? Can you provide some detail on the technology behind it?

The Audi A8 All-Wheel Steering system utilizes an electronically controlled rear-steering system that can turn the rear wheels in the same direction or opposite direction as the front wheels, depending on the driving situation. This improves low-speed maneuverability and high-speed stability.

The all-wheel steering system in the Audi A8 is able to adjust the rear steering angle up to 5 degrees, which helps the vehicle to turn and handle more precisely and smoothly. It also reduces the turning circle, making it easier to navigate tight spaces.

According to Audi, the all-wheel steering system in the A8 improves handling and reduces the steering effort by up to 60%. This is achieved through a combination of electronic control and precision hydraulic actuators.