2020 Mercedes AMG C-Class Coupe vs. 2020 BMW 8 Series

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 2020/02/29

For enhanced safety, the front and rear seat shoulder belts of the Mercedes AMG C-Class Coupe have pretensioners to tighten the seatbelts and eliminate dangerous slack in the event of a collision and force limiters to limit the pressure the belts will exert on the passengers. The BMW 8 Series doesn’t offer pretensioners for the rear seat belts.

Using vehicle speed sensors, smart airbags in the AMG C-Class Coupe deploy with different levels of force or don’t deploy at all to help better protect passengers of all sizes in different collisions. The AMG C-Class Coupe’s side airbags will shut off if a child is leaning against the door. The 8 Series’ airbags don’t have smart features and will always deploy full force.

Both the AMG C-Class Coupe and the 8 Series have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, rearview cameras, driver alert monitors, available lane departure warning systems, around view monitors and rear cross-path warning.

Warranty

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There are over 10 percent more Mercedes dealers than there are BMW dealers, which makes it easier should you ever need service under the AMG C-Class Coupe’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 BMW vehicles. J.D. Power ranks Mercedes 12th in initial quality. With 8 more problems per 100 vehicles, BMW is ranked 20th.

Engine

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The AMG C-Class Coupe has more powerful engines than the 8 Series:

Horsepower

Torque

AMG C 43 Coupe 3.0 turbo V6

385 HP

384 lbs.-ft.

AMG C 63 Coupe 4.0 turbo V8

469 HP

479 lbs.-ft.

AMG C 63 S Coupe 4.0 turbo V8

503 HP

516 lbs.-ft.

840i 3.0 turbo 6-cylinder

335 HP

368 lbs.-ft.

Environmental Friendliness

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In its Green Vehicle Guide, the U.S. Environmental Protection Agency (EPA) rates the Mercedes AMG C-Class Coupe higher (5 out of 10) than the BMW 8 Series (3). This means the AMG C-Class Coupe produces up to 16.5 pounds less smog-producing pollutants than the 8 Series every 15,000 miles.

Transmission

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A nine-speed automatic (SMG) is standard on the Mercedes AMG C-Class Coupe, for better acceleration and lower engine speed on the highway. Only an eight-speed automatic is available for the 8 Series.

The AMG C-Class Coupe offers an available sequential manual gearbox (SMG). With no clutch pedal to worry about and a fully automatic mode, an SMG is much more efficient than a conventional automatic but just as easy to drive. The 8 Series doesn’t offer an SMG or a conventional manual transmission.

Brakes and Stopping

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For better stopping power the AMG C 63 S Coupe’s front brake rotors are larger than those on the 8 Series:

AMG C 63 S Coupe

8 Series

Front Rotors

15.8 inches

15.6 inches

The AMG C-Class Coupe S 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 8 Series doesn’t offer ceramic brake rotors.

The AMG C-Class Coupe stops much shorter than the 8 Series:

AMG C-Class Coupe

8 Series

70 to 0 MPH

151 feet

161 feet

Car and Driver

Tires and Wheels

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For better traction, the AMG C-Class Coupe’s tires are larger than the largest tires available on the 8 Series (F:255/40R18 & R:285/35R18 vs. F:245/35R20 & R:275/30R20).

Suspension and Handling

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The AMG C-Class Coupe’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 8 Series doesn’t offer drift compensation steering.

For better maneuverability, the AMG C 63 Coupe’s turning circle is 1.1 feet tighter than the 8 Series’ (37.1 feet vs. 38.2 feet). The AMG C 43 Coupe’s turning circle is .6 feet tighter than the 8 Series xDrive’s (38.4 feet vs. 39 feet).

Chassis

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The AMG C 43 Coupe is 6.4 inches shorter than the 8 Series, making the AMG C-Class Coupe easier to handle, maneuver and park in tight spaces.

Passenger Space

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The AMG C-Class Coupe has 2 inches more rear headroom, 2.5 inches more rear legroom and 4.8 inches more rear shoulder room than the 8 Series Coupe.

Servicing Ease

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J.D. Power and Associates surveys of service recipients show that Mercedes service is better than BMW. J.D. Power ranks Mercedes fifth in service department satisfaction. With a 23% lower rating, BMW is ranked 11th.

Ergonomics

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To shield the driver and front passenger’s vision over a larger portion of the windshield and side windows, the AMG C-Class Coupe has standard extendable sun visors. The 8 Series doesn’t offer extendable visors.

The AMG C-Class Coupe has a standard center folding armrest for the rear passengers. A center armrest helps make rear passengers more comfortable. The 8 Series doesn’t offer a rear seat center armrest.

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 2020/02/29

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

J.D. Power and Associates rated the AMG C-Class Coupe first among compact premium cars in owner reported satisfaction. This includes how well the vehicle performs and satisfies its owner’s expectations. The 8 Series isn’t in the top three.

© 1991-2018 Advanta-STAR Automotive Research. All rights reserved.

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