2020 Mercedes AMG E-Class Sedan vs. 2020 Audi S8

Detailed Review, Specifications & Comparison

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Safety

© 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 2020/07/06

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 S8 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 S8 doesn’t offer a driver alert monitor.

Both the AMG E-Class Sedan and the S8 have standard driver and passenger frontal airbags, front and rear side-impact airbags, driver knee airbags, side-impact head airbags, front 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 S8 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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To reliably start during all conditions and help handle large electrical loads, the AMG E-Class Sedan has a standard 850-amp battery. The S8’s 380-amp battery isn’t as powerful.

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 40 more horsepower (603 vs. 563) and 37 lbs.-ft. more torque (627 vs. 590) than the S8’s 4.0 turbo V8 hybrid.

As tested in Car and Driver the AMG E 63 S 4.0 turbo V8 is faster than the Audi S8:

AMG E-Class Sedan

S8

Zero to 60 MPH

2.9 sec

3.2 sec

Zero to 100 MPH

6.7 sec

8.1 sec

5 to 60 MPH Rolling Start

3.8 sec

4.6 sec

Quarter Mile

11 sec

11.6 sec

Speed in 1/4 Mile

128 MPH

119 MPH

Top Speed

186 MPH

155 MPH

Fuel Economy and Range

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On the EPA test cycle the AMG E 53 gets better fuel mileage than the S8 (21 city/28 hwy vs. 13 city/22 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 S8 doesn’t offer a system that can shut down part of the engine.

Environmental Friendliness

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In its Green Vehicle Guide, the U.S. Environmental Protection Agency (EPA) rates the Mercedes AMG E-Class Sedan higher (5 to 6 out of 10) than the Audi S8 (3). This means the AMG E-Class Sedan produces up to 23.4 pounds less smog-producing pollutants than the S8 every 15,000 miles.

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 an eight-speed automatic is available for the S8.

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 S8 doesn’t offer launch control.

Brakes and Stopping

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The AMG E-Class Sedan stops shorter than the S8:

AMG E-Class Sedan

S8

70 to 0 MPH

153 feet

162 feet

Car and Driver

Tires and Wheels

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For better traction and acceleration, the AMG E-Class Sedan has larger standard rear tires than the S8 (275/35R19 vs. 265/40R20). The AMG E 63 S’ rear tires are larger than the largest rear tires available on the S8 (295/30R20 vs. 265/40R20).

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 S8’s standard 40 series tires. The AMG E 63 S’ 295/30R20 rear tires have a lower 30 series profile than the S8’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 S8 doesn’t offer run-flat tires.

Suspension and Handling

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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 S8 doesn’t offer drift compensation steering.

The AMG E 63 S handles at 1.01 G’s, while the S8 pulls only .94 G’s of cornering force in a Car and Driver skidpad test.

For better maneuverability, the AMG E-Class Sedan’s turning circle is 1.3 feet tighter than the S8’s (41 feet vs. 42.3 feet).

Chassis

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The Mercedes AMG E-Class Sedan may be more efficient, handle and accelerate better because it weighs about 800 pounds less than the Audi S8.

The AMG E 53 is 1 foot, 1.8 inches shorter than the S8, making the AMG E-Class Sedan easier to handle, maneuver and park in tight spaces.

Cargo Capacity

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The AMG E-Class Sedan has a larger trunk than the S8 (13.1 vs. 12.5 cubic feet).

The AMG E-Class Sedan’s standard rear seats fold to accommodate long and bulky cargo. The S8 doesn’t offer folding rear seats, only a ski pass-through.

Servicing Ease

© 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 2020/07/06

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 S8 doesn’t offer a remote starting system.

The AMG E-Class Sedan’s power window, power lock, power mirror and cruise control switches are lit from behind, making them plainly visible and easier to operate at night. The S8’s cruise control switches are unlit, making them difficult to find at night and operate safely.

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 S8 doesn’t offer heated windshield washer fluid.

The AMG E-Class Sedan’s optional Active Parking Assist can parallel park by itself, stopping and changing direction automatically. The S8 doesn’t offer an automated parking system.

Model Availability

© 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 2020/07/06

The Mercedes AMG E-Class comes in coupe, convertible, sedan and station wagon bodystyles; the Audi S8 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 2020/07/06

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

The Mercedes E-Class/CLS outsold the Audi S8 by almost 14 to one during 2019.

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