Why is the Audi A8 equipped with a 48-volt mild hybrid system?

I heard that the Audi A8 has a 48-volt mild hybrid system. What is this system and why is it important for the car?

The 48-volt mild hybrid system in the Audi A8 is a new technology that helps improve fuel efficiency and reduce emissions. It works by using a small electric motor and a battery to assist the engine during acceleration, allowing it to use less fuel.

Having a 48-volt mild hybrid system in the Audi A8 also helps improve the car's performance. The electric motor provides additional power and torque, allowing for a smoother and more responsive driving experience.