Corporate Average Fuel Economy targets for 2015 and beyond mean that all automakers selling vehicles in the US need to find a way to improve fleet efficiency without facing the risk of hefty fines.
For luxury automakers, traditionally seen as standard bearers of large displacement engines, this has meant a radical re-think when it comes to engine technology. Audi‘s flagship sedan, long recognized as a home for V8 power, is now joining the fray, with two downsized engines, a 3.0-liter supercharged V6 and later a 3.0 diesel in the works.
This will mark the first time that either engine has been offered in the A8, though with some 333 hp and 325 lb-ft of torque on tap, the V6 supercharged should prove no slouch.
As for the diesel, not much information is currently available, suffice to say that it will likely differ in power output from the European version due to emissions requirements for oil burners here in the US (at present the engine is undergoing certification). Stay tuned for further developments.