The A8 L is elegant and nimble in spite of its more than 5 meters and 27 centimeters. The 13 centimeters of extra length have been added between the sets of tires, stretching the car's wheelbase. That translates into more space and comfort in the interior.Along with the standard range of 6- and 8-cylinder A8 motors, A8 L customers can also choose a 500-horsepower 12-cylinder gasoline engine that's exclusive to the stretch version. drive it! settled for half that power, and took out the more economical, 3-liter 250-horspower diesel A8 L.