The 2011 Audi A8 comes in two models: the Audi A8 and the Audi A8 L. The A8 L is just an upgraded version of the the regular A8. The main difference is the amount of packages and options included, such as an executive rear seating package. Upgrades include a better inlay, keyless entry, and more. The A8 L costs around $6,000 more.