2019 Audi RS 5 Sportback vs. 2018 Mercedes AMG C 63 Sedan

Detailed Review, Specifications & Comparison

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Safety

The RS 5 Sportback has all-wheel drive to maximize traction under poor conditions, especially in ice and snow. The AMG C 63 Sedan doesn’t offer all-wheel drive.

To help make backing safer, the RS 5 Sportback’s cross-path warning system uses wide-angle radar in the rear bumper to alert the driver to vehicles approaching from the side, helping the driver avoid collisions. The AMG C 63 Sedan doesn’t offer a cross-path warning system.

Both the RS 5 Sportback and the AMG C 63 Sedan have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, front and rear seatbelt pretensioners, height adjustable front shoulder belts, plastic fuel tanks, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, blind spot warning systems, rearview cameras, available lane departure warning systems and around view monitors.

Warranty

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

Reliability

J.D. Power and Associates’ 2018 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 13th in reliability, above the industry average. With 6 more problems per 100 vehicles, Mercedes is ranked 15th.

From surveys of all its subscribers, Consumer Reports’ December 2018 Auto Issue reports that Audi vehicles are more reliable than Mercedes vehicles. Consumer Reports ranks Audi 10 places higher in reliability than Mercedes.

Fuel Economy and Range

Regenerative brakes improve the RS 5 Sportback’s fuel efficiency by converting inertia back into energy instead of wasting it. The AMG C 63 Sedan doesn’t offer a regenerative braking system.

Transmission

An eight-speed automatic is standard on the Audi RS 5 Sportback, for better acceleration and lower engine speed on the highway. Only a seven-speed automatic is available for the AMG C 63 Sedan.

Brakes and Stopping

For better stopping power the RS 5 Sportback’s standard front brake rotors are larger than those on the AMG C 63 Sedan:

 

RS 5 Sportback

AMG C 63 Sedan

Front Rotors

14.8 inches

14.2 inches

Tires and Wheels

For better traction, the RS 5 Sportback has larger standard tires than the AMG C 63 Sedan (265/35R19 vs. 245/40R18). The RS 5 Sportback’s optional tires are larger than the largest tires available on the AMG C 63 Sedan (275/30R20 vs. 245/40R18).

The RS 5 Sportback’s standard tires provide better handling because they have a lower 35 series profile (height to width ratio) that provides a stiffer sidewall than the AMG C 63 Sedan’s standard 40 series front tires. The RS 5 Sportback’s optional tires have a lower 30 series profile than the AMG C 63 Sedan’s optional 35 series tires.

For better ride, handling and brake cooling the RS 5 Sportback has standard 19-inch wheels. Smaller 18-inch wheels are standard on the AMG C 63 Sedan. The RS 5 Sportback’s optional 20-inch wheels are larger than the 19-inch wheels optional on the AMG C 63 Sedan.

Suspension and Handling

For better handling and stability, the track (width between the wheels) on the RS 5 Sportback is 1.5 inches wider in the rear than on the AMG C 63 Sedan.

Passenger Space

The RS 5 Sportback has 2.3 inches more front headroom and .4 inches more front shoulder room than the AMG C 63 Sedan.

Servicing Ease

J.D. Power and Associates surveys of service recipients show that Audi service is better than Mercedes. J.D. Power ranks Audi third in service department satisfaction. With a 3% lower rating, Mercedes is ranked 6th.

Ergonomics

Heated windshield washer nozzles are standard on the RS 5 Sportback to prevent washer fluid and nozzles from freezing and help continue to keep the windshield clear in sub-freezing temperatures. The AMG C 63 Sedan doesn’t offer heated windshield washer nozzles.

On extremely cold winter days, the RS 5 Sportback’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 Sedan doesn’t offer a heated steering wheel.

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

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