When Audi announced the 2013 A8 with the 3.0T V6, it didn't mention fuel economy numbers but did tout the 333-horsepower engine's "great efficiency." According to the United States Environmental Protection Agency, the V6 efficiency exactly matches that of the more powerful 372-horsepower, 4.2-liter V8 – the 3.0T was rated the same 18 city, 28 highway as the naturally aspirated 4.2.
Audi has confirmed at the Detroit Auto Show that its 2013 A8 will be available with a 3.0-liter supercharged V6 in the United States. Delivering 333 horsepower and 325 pound-feet of torque through all four wheels, the A8 3.0T will be sold in both both short- and long-wheelbase formats and it will be one of a growing crop of vehicles sold in North America with start/stop technology. The move follows confirmation that Audi will also market its flagship luxury sedan with a 3.0-liter six-cylinder T