Engine efficiency, optimised aerodynamics and weight reduced by an average of 100 kilograms compared to
the equivalent outgoing models mean that fuel consumption and emissions have been reduced by up to 11 per cent, depending on the engine variant.
More than five inches longer than the
outgoing model — with all the added length devoted to the comfort of rear - seat passengers — the A8L is, like its predecessor, built on an aluminum spaceframe structure that Audi claims reduces chassis mass 40 percent over an all - steel
equivalent.