2020 Mercedes AMG C-Class Coupe vs. 2020 BMW M8

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 2020/02/21

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 M8 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 M8’s airbags don’t have smart features and will always deploy full force.

Both the AMG C-Class Coupe and the M8 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.

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 M8.

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 M8 doesn’t offer an SMG or a conventional manual transmission.

Tires and Wheels

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The AMG C 63 S Coupe’s optional 285/30R20 rear tires provide better handling because they have a lower 30 series profile (height to width ratio) that provides a stiffer sidewall than the M8’s 35 series tires.

Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires available on the AMG C-Class Coupe can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The M8 doesn’t offer run-flat tires.

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 M8 doesn’t offer drift compensation steering.

For better maneuverability, the AMG C 63 Coupe’s turning circle is 1.9 feet tighter than the M8’s (37.1 feet vs. 39 feet). The AMG C 43 Coupe’s turning circle is .6 feet tighter than the M8’s (38.4 feet vs. 39 feet).

Chassis

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The Mercedes AMG C-Class Coupe may be more efficient, handle and accelerate better because it weighs about 300 to 450 pounds less than the BMW M8.

The AMG C 43 Coupe is 7 inches shorter than the M8, 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 M8 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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Unlike the driver-only memory system in the M8, the AMG C-Class Coupe has standard driver and passenger memory, so that when drivers switch, the memory setting adjusts the driver’s seat, steering wheel position and outside mirror angle and the front passenger seat also adjusts to the new passenger’s preset preferences.

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 M8 doesn’t offer extendable visors.

Model Availability

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The Mercedes AMG C-Class comes in coupe, convertible and sedan bodystyles; the BMW M8 isn’t available as a sedan.

The AMG C-Class Coupe is available in both rear-wheel drive and all-wheel drive configurations. The M8 doesn’t offer a two-wheel drive configuration.

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 2020/02/21

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

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