2020 Audi S5 vs. 2020 Mercedes AMG E-Class Coupe

Detailed Review, Specifications & Comparison

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Safety

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The S5 has a standard Secondary Collision Brake Assist, which automatically applies the brakes in the event of a crash to help prevent secondary collisions and prevent further injuries. The AMG E-Class Coupe doesn’t offer a post collision braking system: in the event of a collision that triggers the airbags, more collisions are possible without the protection of airbags that may have already deployed.

Both the S5 and the AMG E-Class Coupe have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, front and rear seatbelt pretensioners, 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, blind spot warning systems, around view monitors and rear cross-path warning.

For its top level performance in all IIHS frontal, side, rear impact and roof-crush tests, and its standard front crash prevention system, the Insurance Institute for Highway Safety grants the S5 the rating of “Top Pick” for 2017, a rating granted to only 185 vehicles tested by the IIHS. The AMG E-Class Coupe has not been tested, yet.

Warranty

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The S5’s corrosion warranty is 7 years longer than the AMG E-Class Coupe’s (12 vs. 5 years).

Reliability

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J.D. Power and Associates’ 2019 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Audi vehicles are more reliable than Mercedes vehicles. J.D. Power ranks Audi 8th in reliability, above the industry average. With 10 more problems per 100 vehicles, Mercedes is ranked 13th.

From surveys of all its subscribers, Consumer Reports’ December 2019 Auto Issue reports that Audi vehicles are more reliable than Mercedes vehicles. Consumer Reports ranks Audi 7 places higher in reliability than Mercedes.

Fuel Economy and Range

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To lower fuel costs and make buying fuel easier, the Audi S5 uses regular unleaded gasoline (premium recommended for maximum performance). The AMG E-Class Coupe requires premium, which can cost 20 to 55 cents more per gallon.

Tires and Wheels

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For better traction, the S5’s optional tires are larger than the largest tires available on the AMG E-Class Coupe (265/30R20 vs. 245/40R19).

The S5’s optional tires provide better handling because they have a lower 30 series profile (height to width ratio) that provides a stiffer sidewall than the AMG E-Class Coupe’s optional 35 series front tires.

The S5 has a standard space-saver spare tire so you can replace a flat tire and drive to have the flat repaired or replaced. A spare tire isn’t available on the AMG E-Class Coupe; it requires you to depend on its run-flat tires, which limits mileage and speed before they are repaired. If a run-flat is damaged beyond repair by a road hazard your vehicle will have to be towed. Some tire options on the AMG E-Class Coupe don’t have a run-flat feature, either.

Suspension and Handling

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For better maneuverability, the S5’s turning circle is 2 feet tighter than the AMG E-Class Coupe’s (37.7 feet vs. 39.7 feet).

Chassis

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The Audi S5 may be more efficient, handle and accelerate better because it weighs about 250 to 550 pounds less than the Mercedes AMG E-Class Coupe.

The S5 is 5.1 inches shorter than the AMG E-Class Coupe, making the S5 easier to handle, maneuver and park in tight spaces.

Cargo Capacity

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The S5 Coupe has a larger trunk than the AMG E-Class Coupe (10.9 vs. 10 cubic feet).

Ergonomics

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In poor weather, headlights can lose their effectiveness as grime builds up on their lenses. This can reduce visibility without the driver realizing. The S5 Prestige has standard headlight washers to keep headlight output high. The AMG E-Class Coupe doesn’t offer headlight washers.

Economic Advantages

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The S5 will cost the buyer less in the long run because of its superior resale value. The IntelliChoice estimates that the S5 will retain 41.89% to 46.48% of its original price after five years, while the AMG E-Class Coupe only retains 37.65%.

IntelliChoice estimates that five-year ownership costs (depreciation, financing, insurance, fuel, fees, repairs and maintenance) for the Audi S5 will be $8812 to $22255 less than for the Mercedes AMG E-Class Coupe.

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