Why does the Audi A8 have a more expensive starting price compared to other luxury sedans?

I've noticed that the Audi A8 has a starting price of over $85,000, while other luxury sedans like the Mercedes S-Class and BMW 7 Series start at around $70,000. Can you explain why there is such a significant price difference and what justifies the higher cost for the A8?

The higher starting price of the Audi A8 is due to its advanced engineering and top-of-the-line technology. From its lightweight aluminum construction to its state-of-the-art infotainment system, the A8 offers unparalleled performance and luxury.