The delinquent brother of Audi's midsize A6, the S6 packs a twin-turbo V8 for truly exhilarating performance. Although it looks rather sedate, the S6 remains one of the fastest luxury sedans available for the money.

Pricing and Equipment

The S6 starts out in Premium Plus trim for $71,850 (including $950 destination charge). The base price includes plenty of high-end features, including:

  • Diamond-stitched leather sport seats with driver memory
  • Four-zone automatic climate control
  • Blind spot monitoring and front and rear parking sensors
  • Audi's MMI infotainment system with navigation and touchpad controller
  • A 14-speaker Bose sound system

The Premium model ($74,100) also gets a power trunk lid, rear sunshades, and LED lighting throughout.

The S6's twin-turbocharged 4.0-liter V8 engine produces 450 horsepower and 406 lb-ft of torque. Audi's quattro all-wheel drive system comes standard, along with a seven-speed automatic transmission with paddle shifters. The Audi Drive Select system offers four diving modes: Comfort, Dynamic, Auto, and Individual. The S6 rides on 19-inch wheels with summer performance tires.

The $2,250 Driver Assistance Package adds a suite of advanced safety technology, including surround-view cameras, lane keeping assist, and collision mitigation with automatic braking. Ventilated and massaging front seats come in the $1,850 Comfort Seat Package. For peak performance, Audi offers a $3,900 Sport Package with variable-ratio steering, a torque-vectoring rear differential, and a sport exhaust system.

Performance Pros

Audi S6
  • The S6 takes off in an instant and never really runs out of breath. The plush sedan reaches 60 miles per hour in 4.3 seconds, which is fierce performance for a sedan of this size.
  • The adaptive suspension keeps the S6 on high alert during hard cornering. When the pavement straightens out, it relaxes to provide a luxuriously smooth ride.
  • The Auto driving mode was remarkably perceptive. It automatically switches between Comfort and Dynamic (i.e, sport) settings based on the driver's behavior. The S6 always seemed to know whether we were in the mood for cruising or something more raucous.

Performance Cons

  • There's no getting around the fact that the S6 weighs almost 4,500 pounds, and that weight makes its presence known under hard acceleration and handling.
  • Although the S6 handles well, the steering is a bit too numb for our taste. It sometimes feels disconnected from the road.
  • The Comfort driving mode softens the suspension more than we expected in such a powerful car. It's best left to open highways and serene touring.

Interior Pros

  • The infotainment system's touchpad lets you draw symbols with your finger instead of selecting them with the main dial. The nifty little tablet had no problem interpreting our scribbles.
  • The standard diamond-stitched leather is an upscale style that's usually reserved for larger, more expensive luxury sedans. Other materials are top-notch as well.
  • Adults fit easily in the backseat thanks to generous leg and head room.

Interior Cons

Audi S6
  • Trunk space registers at a middling 14.1 cubic feet. Even some compact sedans can hold more.
  • The S6 looks like a serious performance car on the inside—probably too serious. Some buyers might find the environment too dark and severe.

The Most Pleasant Surprise

Despite being a roomy sedan with all-wheel drive and a powerful V8, the Audi S6 is EPA-rated at 21 miles per gallon in combined city and highway driving. All things considered, that's quite an achievement.

The Least Pleasant Surprise

The Audi S6 doesn't draw many admiring glances, and we can see why. The styling is supposed to be understated, but it comes off as boring in many eyes.

The Bottom Line

The Audi S6 is a respectable luxury sedan that happens to have a very wild side.