2018 Audi S6

Overview

The 2018 Audi S6 is a high-performance sports sedan that doesn’t look much different from a regular run-of-the-mill A6. This fact will appeal to luxury car shoppers who like to fly under the radar in a 450-hp machine that has room for five and a spacious trunk. With its twin-turbocharged 4.0-liter V-8 and standard all-wheel drive, the S6 is unstoppable and unflappable in any road conditions. A hefty curb weight of approximately 4400 pounds does blunt some of the playful nature you expect in a car with this degree of power, however.

What's New for 2018?

The 2018 Audi S6 rolls into another model year with no notable changes.

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Pricing

Original MSRP:

• Premium Plus: $72,875
• Prestige: $75,375

Engine, Transmission, and Performance

It takes a mighty 450-hp twin-turbo V-8 to make a sedan weighing well above two tons this rapid in a straight line. Hit the gas pedal and the S6 requires just 3.9 seconds to sprint from zero to 60 mph. Standard air suspension provides a sublime balance of comfort and agility, though even this high-tech hardware can’t always mask the sheer heft of the S6 during tight cornering maneuvers. Working with a dual-clutch seven-speed automatic transmission and Audi’s Quattro all-wheel drive, the S6 is smoothly efficient and relentlessly fast. Though the overall driving experience is a little sterile compared to some direct rivals, such as the Mercedes-AMG E63 and the Alfa Romeo Giulia Quadrifoglio.

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Fuel Economy

EPA fuel-economy testing and reporting procedures have changed over time. For the latest numbers on current and older vehicles, visit the EPA’s website and select Find & Compare Cars.

Interior, Comfort, and Cargo

The interior of the S6 is expertly engineered but comes across as a little clinical. We can’t fault the quality of the materials; highlights like the diamond-quilted leather seats and carbon fiber trim on the dashboard both look and feel great. The flat-bottom steering wheel is a racy touch, and all major controls are right where you want them. At no point will you spot any budget-minded plastics or buttons that snuck their way into this elegant, if moderately antiseptic feeling, cabin.

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Infotainment and Connectivity

The S6 comes equipped with Audi’s superb MMI infotainment system, which features quick responses, clear graphics, and user-friendly menus. Standard tech features include Apple CarPlay, Android Auto, a Bose audio system, Bluetooth, and navigation. Stepping up from the S6 Premium Plus to the S6 Prestige trim nets features like a head-up instrument display, 360-degree parking cameras, and 15-speaker Bang & Olufsen stereo.

Safety Features and Crash Test Ratings

Overall Safety Rating (NHTSA)

View Crash Test Results

For more information about the Audi S6’s crash-test results, visit the National Highway Traffic Safety Administration (NHTSA) and Insurance Institute for Highway Safety (IIHS) websites.

Warranty

Some older vehicles are still eligible for coverage under a manufacturer's Certified Pre-Owned (CPO) program. For more information visit our guide to every manufacturer's CPO program.