2020 Mercedes C-Class Sedan vs. 2020 Kia Stinger

Detailed Review, Specifications & Comparison

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Safety

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For enhanced safety, the front and rear seat shoulder belts of the Mercedes C-Class Sedan have pretensioners to tighten the seatbelts and eliminate dangerous slack in the event of a collision. The Kia Stinger doesn’t offer pretensioners for the rear seat belts.

The C-Class Sedan’s pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The Stinger doesn’t offer pre-crash pretensioners.

Both the C-Class Sedan and the Stinger have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, height adjustable front shoulder belts, plastic fuel tanks, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights, blind spot warning systems, rearview cameras, available all wheel drive, lane departure warning systems, around view monitors and rear cross-path warning.

Warranty

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The C-Class Sedan’s 5 year corrosion warranty has no mileage limitations, but the corrosion warranty on the Stinger runs out after 100,000 miles.

Engine

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The C-Class Sedan’s 2.0 turbo 4-cylinder produces 13 lbs.-ft. more torque (273 vs. 260) than the Stinger GT-Line’s standard 2.0 turbo 4-cylinder.

Fuel Economy and Range

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On the EPA test cycle the C-Class Sedan gets better fuel mileage than the Stinger:

MPG

C-Class Sedan

RWD

2.0 turbo 4-cyl.

24 city/35 hwy

AWD

2.0 turbo 4-cyl.

23 city/33 hwy

Stinger

RWD

2.0 turbo 4-cyl.

22 city/29 hwy

3.3 turbo V6

17 city/25 hwy

AWD

2.0 turbo 4-cyl.

21 city/29 hwy

3.3 turbo V6

17 city/25 hwy

The C-Class Sedan has 1.5 gallons more fuel capacity than the Stinger (17.4 vs. 15.9 gallons), for longer range between fill-ups.

Environmental Friendliness

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In its Green Vehicle Guide, the U.S. Environmental Protection Agency (EPA) rates the Mercedes C-Class Sedan higher (6 out of 10) than the Kia Stinger (3). This means the C-Class Sedan produces up to 23.4 pounds less smog-producing pollutants than the Stinger every 15,000 miles.

Transmission

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A nine-speed automatic is standard on the Mercedes C-Class Sedan, for better acceleration and lower engine speed on the highway. Only an eight-speed automatic is available for the Stinger.

Brakes and Stopping

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For better stopping power the C-Class Sedan’s standard front brake rotors are larger than those on the Stinger:

C-Class

Stinger

Front Rotors

13 inches

12.6 inches

The C-Class Sedan’s standard front and rear disc brakes are vented to help dissipate heat for shorter stops with less fading. The rear discs standard on the Stinger GT-Line are solid, not vented.

In an emergency stopping situation, many drivers don’t press the brakes with enough force to stop the vehicle in the shortest distance. The C-Class Sedan has a standard brake assist system to detect emergency braking situations (by how hard and how quickly the brake pedal is pressed) and then automatically apply maximum braking immediately in order to help prevent a collision. The Stinger doesn’t offer a brake assist feature.

The C-Class Sedan stops much shorter than the Stinger:

C-Class

Stinger

60 to 0 MPH

105 feet

126 feet

Motor Trend

Tires and Wheels

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

Suspension and Handling

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The C-Class Sedan’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 Stinger doesn’t offer drift compensation steering.

The C 300 Sedan handles at .91 G’s, while the Stinger GT pulls only .85 G’s of cornering force in a Motor Trend skidpad test.

The C 300 Sedan executes Motor Trend’s “Figure Eight” maneuver 1.1 seconds quicker than the Stinger (25.7 seconds @ .71 average G’s vs. 26.8 seconds @ .67 average G’s).

Chassis

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The C-Class Sedan is 5.7 inches shorter than the Stinger, making the C-Class Sedan easier to handle, maneuver and park in tight spaces.

The front grille of the C-Class Sedan uses electronically controlled shutters to close off airflow and reduce drag when less engine cooling is needed. This helps improve highway fuel economy. The Stinger doesn’t offer active grille shutters.

Passenger Space

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The C-Class Sedan has .1 inches more rear headroom and .2 inches more rear shoulder room than the Stinger.

Cargo Capacity

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With its sedan body style, valet key, locking rear seatbacks and remote trunk release lockout, the C-Class offers cargo security. The Stinger’s hatchback body style, non-lockable folding seat and non-lockable remote release defeat cargo security.

Servicing Ease

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J.D. Power and Associates surveys of service recipients show that Mercedes service is better than Kia. J.D. Power ranks Mercedes fifth in service department satisfaction. With a 45% lower rating, Kia is ranked 20th.

Ergonomics

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Unlike the driver-only memory system in the Stinger GT1/GT2, the C-Class Sedan offers an optional 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.

The C-Class Sedan’s power parking brake sets with one touch and releases with one touch or automatically. The Stinger’s parking brake has to released manually.

The C-Class Sedan’s front and rear power windows all open or close fully with one touch of the switches, making it more convenient at drive-up windows and toll booths, or when talking with someone outside the car. The Stinger’s rear power window switches have to be held the entire time to open or close them fully.

If the windows are left open on the C-Class Sedan the driver can close them all at the outside door handle or from a distance using the remote. On a hot day the driver can lower the windows from a distance using the keyless remote. The driver of the Stinger can only operate the windows from inside the vehicle, with the ignition on.

The C-Class Sedan’s rain-sensitive wipers adjust their speed and turn on and off automatically based on the amount of rainfall on the windshield. This allows the driver to concentrate on driving without constantly adjusting the wipers. The Stinger’s standard manually variable intermittent wipers have to be constantly adjusted.

A power rear sunshade is optional in the C-Class Sedan to help block heat and glare for the rear passengers. The Stinger doesn’t offer a rear sunshade.

The C-Class Sedan’s optional Active Parking Assist can parallel park or back into a parking spot by itself, stopping and changing direction automatically. The Stinger doesn’t offer an automated parking system.

Model Availability

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The Mercedes C-Class comes in coupe, convertible and sedan bodystyles; the Kia Stinger isn’t available as a coupe or convertible.

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 2020/02/24

Consumer Reports® recommends the Mercedes C-Class Sedan, based on reliability, safety and performance. The Kia Stinger isn't recommended.

J.D. Power and Associates rated the C-Class Sedan first among compact premium cars in owner reported satisfaction. This includes how well the vehicle performs and satisfies its owner’s expectations. The Stinger was rated third.

The C-Class Sedan was chosen as one of Automobile Magazine’s “All Stars” in 2015. The Stinger has never been an “All Star.”

The Mercedes C-Class outsold the Kia Stinger by almost four to one during the 2019 model year.

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