2020 BMW M4 vs. 2019 Mercedes AMG C 63 Coupe

Detailed Review, Specifications & Comparison

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Safety

Both the M4 and the AMG C 63 Coupe have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, front seatbelt pretensioners, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, rearview cameras, available blind spot warning systems and around view monitors.

Warranty

The M4’s corrosion warranty is 7 years longer than the AMG C 63 Coupe’s (12 vs. 5 years).

BMW pays for scheduled maintenance on the M4 for 3 years and 36,000 miles. BMW will pay for oil changes, lubrication and any other required maintenance. Mercedes doesn’t pay scheduled maintenance for the AMG C 63 Coupe.

Reliability

J.D. Power and Associates’ 2018 Initial Quality Study of new car owners surveyed provide the statistics that show that BMW vehicles are better in initial quality than Mercedes vehicles. J.D. Power ranks BMW 11th in initial quality, above the industry average. With 5 more problems per 100 vehicles, Mercedes is ranked 15th.

J.D. Power and Associates’ 2019 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that BMW vehicles are more reliable than Mercedes vehicles. J.D. Power ranks BMW 7th in reliability, above the industry average. With 12 more problems per 100 vehicles, Mercedes is ranked 13th.

From surveys of all its subscribers, Consumer Reports’ December 2018 Auto Issue reports that BMW vehicles are more reliable than Mercedes vehicles. Consumer Reports ranks BMW 9 places higher in reliability than Mercedes.

Brakes and Stopping

For better stopping power the M4’s standard brake rotors are larger than those on the AMG C 63 Coupe:

M4

AMG C 63

Front Rotors

15 inches

14.2 inches

Rear Rotors

14.6 inches

14.2 inches

Tires and Wheels

For better traction, the M4 has larger standard tires than the AMG C 63 Coupe (F:255/40R18 & R:275/40R18 vs. F:245/35R19 & R:265/35R19). The M4’s optional front tires are larger than the largest tires available on the AMG C 63 Coupe (F:265/30R20 & R:285/30R20 vs. F:255/40R18 & R:285/35R18).

The M4’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 C 63 S Coupe’s optional 35 series front tires.

For better ride, handling and brake cooling the M4 offers optional 20-inch wheels. The AMG C 63 Coupe’s largest wheels are only 19-inches in the front and 20-inches in the rear.

Chassis

The BMW M4 may be more efficient, handle and accelerate better because it weighs up to about 500 pounds less than the Mercedes AMG C 63 Coupe.

The M4’s standard power retractable hardtop allows a seamless transition from an open car, to a completely sealed coupe. The AMG C 63 Coupe doesn’t offer a retractable hardtop.

Passenger Space

Because it has more passenger and cargo room, the EPA rates the M4 Coupe a Compact car, while the AMG C 63 Coupe is rated a Subcompact.

The M4 Coupe has 10.9 cubic feet more passenger volume than the AMG C 63 Coupe (90.2 vs. 79.3).

The M4 Coupe has 1 inch more front headroom, .2 inches more front legroom, .5 inches more front shoulder room, .5 inches more rear headroom and 1.7 inches more rear legroom than the AMG C 63 Coupe.

Cargo Capacity

The M4 Coupe has a larger trunk than the AMG C 63 Coupe (11 vs. 10.5 cubic feet).

Ergonomics

Heated windshield washer nozzles are standard on the M4 to prevent washer fluid and nozzles from freezing and help continue to keep the windshield clear in sub-freezing temperatures. The AMG C 63 Coupe doesn’t offer heated windshield washer nozzles.

In poor weather, headlights can lose their effectiveness as grime builds up on their lenses. This can reduce visibility without the driver realizing. The M4 offers available headlight washers to keep headlight output high. The AMG C 63 Coupe doesn’t offer headlight washers.

A power rear sunshade is optional in the M4 Coupe to help block heat and glare for the rear passengers. The AMG C 63 Coupe doesn’t offer a rear sunshade.

On extremely cold winter days, the M4’s optional heated steering wheel provides comfort, allowing the driver to steer safely and comfortably before the car heater warms up. The AMG C 63 Coupe doesn’t offer a heated steering wheel.

Recommendations

The 4 Series was chosen as one of Car and Driver’s “Top Ten” in 2014. The AMG C 63 Coupe has never been a Car and Driver “Top Ten” pick.

The M3/M4 was chosen as one of Automobile Magazine’s “All Stars” for 13 of the last 23 years. The AMG C 63 Coupe has never been an “All Star.”

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

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