2020 Mercedes AMG E-Class Sedan vs. 2020 Audi S6

Detailed Review, Specifications & Comparison

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Safety

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The rear seatbelts optional on the AMG E-Class Sedan inflate when a collision is detected, helping to spread crash forces over a much larger area of the body and limiting head and neck movement. This can help prevent spinal and internal injuries. The S6 doesn’t offer inflatable seatbelts.

The AMG E-Class Sedan’s driver alert monitor detects an inattentive driver then sounds a warning and suggests a break. According to the NHTSA, drivers who fall asleep cause about 100,000 crashes and 1500 deaths a year. The S6 doesn’t offer a driver alert monitor.

Both the AMG E-Class Sedan and the S6 have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, front and rear seatbelt pretensioners, height adjustable front shoulder belts, four-wheel antilock brakes, all wheel drive, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, rearview cameras, available lane departure warning systems, around view monitors and rear cross-path warning.

For its top level performance in IIHS driver and passenger-side small overlap frontal, moderate overlap frontal, side impact, roof strength and head restraint tests, its standard front crash prevention system, and its headlight’s “Good” rating, the Insurance Institute for Highway Safety grants the AMG E-Class Sedan its highest rating: “Top Pick Plus” for 2019, a rating granted to only 87 vehicles tested by the IIHS. The S6 has not been tested, yet.

Warranty

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There are over 26 percent more Mercedes dealers than there are Audi dealers, which makes it easier should you ever need service under the AMG E-Class Sedan’s warranty.

Reliability

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J.D. Power and Associates’ 2019 Initial Quality Study of new car owners surveyed provide the statistics that show that Mercedes vehicles are better in initial quality than Audi vehicles. J.D. Power ranks Mercedes 12th in initial quality. With 12 more problems per 100 vehicles, Audi is ranked 22nd.

Engine

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The AMG E 63 S’ standard 4.0 turbo V8 produces 159 more horsepower (603 vs. 444) and 184 lbs.-ft. more torque (627 vs. 443) than the S6’s 2.9 turbo V6 hybrid.

Fuel Economy and Range

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On the EPA test cycle the AMG E 53 gets better fuel mileage than the S6 SMG (21 city/28 hwy vs. 18 city/28 hwy).

An engine control system that can shut down some of the engine’s cylinders helps improve the AMG E-Class Sedan’s fuel efficiency. The S6 doesn’t offer a system that can shut down part of the engine.

The AMG E-Class Sedan has 1.8 gallons more fuel capacity than the S6 (21.1 vs. 19.3 gallons), for longer range between fill-ups.

Transmission

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A nine-speed automatic is standard on the Mercedes AMG E-Class Sedan, for better acceleration and lower engine speed on the highway. Only a seven-speed automatic is available for the S6.

The AMG E-Class Sedan’s launch control uses engine electronics to hold engine RPM’s precisely in order to provide the most stable and rapid acceleration possible, using all of the available traction. The S6 doesn’t offer launch control.

Brakes and Stopping

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The AMG E-Class Sedan offers optional heat-treated ceramic brake rotors, which last ten to twenty times as long as conventional cast iron rotors, don’t rust, don’t fade during repeated high speed braking, and their lighter weight contribute to better braking, handling and acceleration. The S6 doesn’t offer ceramic brake rotors.

Tires and Wheels

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For better traction, the AMG E 63 S’ tires are larger than the largest tires available on the S6 (F:265/35R20 & R:295/30R20 vs. 255/40R20).

The AMG E 53’s standard 275/35R19 rear tires provide better handling because they have a lower 35 series profile (height to width ratio) that provides a stiffer sidewall than the S6’s standard 40 series tires. The AMG E 63 S’ 295/30R20 rear tires have a lower 30 series profile than the S6’s optional 35 series tires.

Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires available on the AMG E-Class Sedan can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The S6 doesn’t offer run-flat tires.

Suspension and Handling

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The AMG E-Class Sedan has a standard automatic front and rear load leveling suspension to keep ride height level with a heavy load or when towing. The AMG E-Class Sedan’s height leveling suspension allows the driver to raise ride height for better off-road clearance and then lower it again for easier entering and exiting and better on-road handling. The S6 doesn’t offer a load leveling suspension.

The AMG E-Class Sedan’s drift compensation steering can automatically compensate for road conditions which would cause the vehicle to drift from side to side, helping the driver to keep the vehicle straight more easily. The S6 doesn’t offer drift compensation steering.

Passenger Space

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The AMG E-Class Sedan has .1 inches more front legroom, .1 inches more rear headroom and .6 inches more rear shoulder room than the S6.

Servicing Ease

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J.D. Power and Associates surveys of service recipients show that Mercedes service is better than Audi. J.D. Power ranks Mercedes fifth in service department satisfaction. With a 13% lower rating, Audi is ranked 8th.

Ergonomics

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The AMG E-Class Sedan has a standard remote vehicle starting system, so the vehicle can be started from inside the driver's house. This allows the driver to comfortably warm up the engine before going out to the vehicle. The climate system will also automatically heat or cool the interior. The S6 doesn’t offer a remote starting system.

Heated windshield washer fluid is standard on the AMG E-Class Sedan to defrost the washer nozzles and quickly clear ice and frost from the windshield without scraping. The S6 doesn’t offer heated windshield washer fluid.

The AMG E-Class Sedan offers an optional 115-volt a/c outlet on the center console, allowing you to recharge a laptop or run small household appliances without special adapters that can break or get misplaced. The S6 doesn’t offer a house-current electrical outlet.

The AMG E-Class Sedan’s optional Active Parking Assist can parallel park by itself, stopping and changing direction automatically. The S6 doesn’t offer an automated parking system.

Model Availability

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The Mercedes AMG E-Class comes in coupe, convertible, sedan and station wagon bodystyles; the Audi S6 isn’t available as a coupe, convertible or station wagon.

Recommendations

© 1999 - 2020 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2020/07/13

Consumer Reports® recommends the Mercedes AMG E-Class Sedan, based on reliability, safety and performance.

The Mercedes E-Class/CLS outsold the Audi A6/S6 by over two to one during 2019.

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