What's the difference between the Audi A8 and the A8L models?

I'm thinking of purchasing an Audi A8, but I'm not sure whether to go for the standard A8 or the A8L. What are the technical differences between these two models and how will it affect my driving experience?

The main difference between the A8 and A8L is their size. The A8L is longer, allowing for more legroom and a more spacious backseat. This may be beneficial if you often have passengers in the back.