What is the difference between the Audi A8 sedan and the Audi A8 L sedan?

I am in the market for a luxury sedan and am interested in the Audi A8. However, I see that there are two versions: the A8 sedan and the A8 L sedan. What is the difference between these two models, and which one should I consider buying?

The main difference between the Audi A8 sedan and the Audi A8 L sedan is the length of the vehicle. The A8 L sedan is longer and offers more legroom for rear passengers.

In addition to the longer length, the Audi A8 L sedan also comes with standard features such as a panoramic sunroof and power-closing doors. These features are not available for the A8 sedan.