What are the differences between the Audi A8 models 55 and 60 TFSI?

I am trying to decide between the Audi A8 55 TFSI Quattro and the 60 TFSI Quattro. Could you provide insight into the specific differences between these models?

The main difference between the Audi A8 55 and 60 TFSI models is the engine. The 55 TFSI has a 3.0-liter V6 engine while the 60 TFSI has a 4.0-liter V8 engine. The 60 TFSI also has a higher torque and horsepower output, giving it slightly better performance.

In addition to the engine differences, the 60 TFSI also comes standard with a sport differential and dynamic all-wheel steering. This can enhance the handling and responsiveness of the vehicle compared to the 55 TFSI.