What is the difference between Audi A8 Sportback and A8L?

I am struggling to understand the distinctions between these two models. Can someone explain in simple terms what sets them apart from each other?

The main difference between the Audi A8 Sportback and A8L is the length and interior space. The A8L is longer by almost 13 inches and offers more legroom and headroom in the back seat. It also has a slightly larger trunk space.

Another difference is the engine options. The A8 Sportback is only available in a V6 engine, while the A8L offers a V6, V8, and W12 engine. This may also affect the overall performance and handling of the two models.

Additionally, the A8 Sportback has a more sleek and sporty design, while the A8L has a more traditional and elegant look. The front grille and body lines differ between the two models.