What are the differences between the Audi A8's Quattro All-Wheel Drive and Front-Wheel Drive?

I am considering buying an Audi A8 and am unsure which drivetrain option is best for me. Can someone help me understand the differences between the Quattro All-Wheel Drive and Front-Wheel Drive options in terms of performance, handling, and reliability?

Audi's Quattro All-Wheel Drive system is known for providing excellent traction, making it a great choice for those who frequently drive in inclement weather or on rough terrain. However, it can also add some weight and complexity to the vehicle, potentially impacting fuel efficiency and maintenance costs. For most people, the difference in performance between the Quattro and Front-Wheel Drive may not be noticeable in everyday driving.