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Horsepower on the 2.0T increases to 220, and a new TDI clean-diesel engine is added to the lineup. The A6 2.0T gains standard heated front seats, while the Prestige trim gains Audi Side Assist blind-spot monitoring. A number of new exterior trim and wheel upgrade packages are also offered.
All-new last year, the Audi A6 is little changed for 2013. Quattro all-wheel drive (AWD) is now available with the base 2.0 turbo engine, an economizing stop/start feature is added to the 3.0 supercharged engine and top- and corner-view cameras are available for the parking-assist system.
The 2015 Audi A6 and Audi S6 midsize luxury sedans are designed to go head-to-head with the Mercedes-Benz E-Class and BMW 5 Series, and we'd say they do a fine job of it. The styling bears a strong resemblance to the smaller Audi A4 and the flagship Audi A8, but with those being two of the best-looking luxury sedans on the road, you won't hear complaints from us about the family resemblance. Inside, the A6 takes most of its interior cues from the Audi A7, and again, we don't object. Under the hood is your choice of turbocharged and supercharged gasoline engines or a TDI clean diesel model. The high-performance Audi S6 offers up a 420-horsepower V8 engine.