2019 Mercedes AMG C 63 Coupe vs. 2019 BMW 8 Series

Detailed Review, Specifications & Comparison

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For enhanced safety, the front and rear seat shoulder belts of the Mercedes AMG C 63 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 63 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 63 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.

The AMG C 63 Coupe offers an optional Surround View System to allow the driver to see objects all around the vehicle on a screen. The 8 Series only offers a rear monitor and front and rear parking sensors that beep or flash a light. That doesn’t help with obstacles to the sides.

Both the AMG C 63 Coupe and the 8 Series have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, blind spot warning systems, rearview cameras, rear cross-path warning, driver alert monitors and available lane departure warning systems.


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 63 Coupe’s warranty.


A nine-speed automatic (SMG) is standard on the Mercedes AMG C 63 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 63 Coupe offers a standard 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

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

15.5 inches

The AMG C 63 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.

Tires and Wheels

For better traction, the AMG C 63 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

The AMG C 63 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 1.9 feet tighter than the 8 Series’ (37.1 feet vs. 39 feet).


The Mercedes AMG C 63 Coupe may be more efficient, handle and accelerate better because it weighs about 350 to 600 pounds less than the BMW 8 Series.

The AMG C 63 Coupe is 4.1 inches shorter than the 8 Series, making the AMG C 63 Coupe easier to handle, maneuver and park in tight spaces.

Passenger Space

The AMG C 63 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

J.D. Power and Associates surveys of service recipients show that Mercedes service is better than BMW. J.D. Power ranks Mercedes 6th in service department satisfaction (above the industry average). With a 11% lower rating, BMW is ranked 8th.


The AMG C 63 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.

Model Availability

The Mercedes AMG C 63 comes in coupe, convertible and sedan bodystyles; the BMW 8 Series isn’t available as a sedan.

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

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