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Unlike the V-6 engines, the twin-turbocharged 4.0-liter V-8 in the 2015 A8 4.0T gets a boost in output, to 435 hp. Pricing starts at $87,295 for the short-wheelbase model, and $91,295 for the long-wheelbase A8 L 4.0T.
The same engine is fitted to the sporty 2015 S8, but its output in that model is unchanged from last year at a still-impressive 520 horsepower. The S8 starts at $115,795 for 2015.
Finally, there's the top-of-the-line 2015 Audi A8 L W-12, with a 6.3-liter, twelve-cylinder engine that has to make do with "just" 500 hp, although it now features cylinder deactivation. Pricing for the Audi flagship starts at $138,795.
New safety features include an updated night vision system, a head-up display, and secondary collision assist, which automatically applies the brakes after a collision. Other notable features include available 22-way front seats with 5 massage functions, a sport exhaust system for the S8, and available 20-inch wheels.
The 2015 Audi A8 and S8 are visually distinguished from their predecessors by new light designs and grilles, and reshaped rear bumpers. U.S. models miss out on Audi's Matrix LED technology, but they do feature conventional LED lighting as standard equipment.
Sales of the 2015 Audi A8 and S8 commence this summer.
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