What are the main differences between the Audi A8 models?

I am interested in purchasing an Audi A8 and I noticed there are multiple models available. What are the main differences between the models and how does this affect their performance and features?

The main difference between the Audi A8 and A8L models is the length of the vehicle. The A8L is 130 mm longer, which provides more legroom for rear passengers.

The Audi A8L comes standard with a 7-inch longer wheelbase, which offers more stability and improved handling. This is especially beneficial for drivers who spend a lot of time on the highway.

One of the main differences between the Audi A8 and S8 models is the engine. The S8 has a more powerful V8 engine with 520 horsepower, while the A8 has a V6 engine with 335 horsepower.