Compare the2023 Mercedes C-Class SedanVS 2023 Kia Stinger

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 and force limiters to limit the pressure the belts will exert on the passengers. The Kia Stinger doesn’t offer pretensioners for its 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.

The C-Class Sedan has a standard Post Collision Brake, which automatically applies the brakes in the event of a crash to help prevent secondary collisions and prevent further injuries. The Stinger doesn’t offer a post collision braking system: in the event of a collision that triggers the airbags, more collisions are possible without the protection of airbags that may have already deployed.

Over 200 people are killed each year when backed over by motor vehicles. The C-Class Sedan offers an optional Maneuvering Brake Function that uses rear sensors to monitor for objects to the rear and automatically applies the brakes to prevent a collision. The Stinger doesn’t offer automatic braking for stationary objects directly to the rear.

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, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, blind spot warning systems, rearview cameras, driver alert monitors, available all wheel drive, around view monitors and rear cross-path warning.

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.

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

Regenerative brakes improve the C-Class Sedan’s fuel efficiency by converting inertia back into energy instead of wasting it. The Stinger doesn’t offer a regenerative braking system.

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.

In its Green Vehicle Guide, the U.S. Environmental Protection Agency (EPA) rates the Mercedes C-Class Sedan higher (7 out of 10) than the Kia Stinger (3). This means the C-Class Sedan produces up to 24.5 pounds less smog-producing pollutants than the Stinger every 15,000 miles.

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.

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.

For better traction and acceleration, the C-Class Sedan has larger standard rear tires than the Stinger (245/40R18 vs. 225/45R18).

The C-Class Sedan’s standard 245/40R18 rear tires provide better handling because they have a lower 40 series profile (height to width ratio) that provides a stiffer sidewall than the Stinger GT-Line’s standard 45 series tires.

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.

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-Class Sedan is 3.2 inches shorter than the Stinger, making the C-Class Sedan easier to handle, maneuver and park in tight spaces.

The design of the Mercedes C-Class Sedan amounts to more than styling. The C-Class Sedan has an aerodynamic coefficient of drag of .24 Cd. That is significantly lower than the Stinger (.3) and many sports cars. A more efficient exterior helps keep the interior quieter and helps the C-Class Sedan get better fuel mileage.

The C-Class Sedan has 2.6 inches more front hip room, .5 inches more rear headroom, 2 inches more rear hip room and .8 inches more rear shoulder room than the Stinger.

Pressing a switch automatically lowers the C-Class Sedan’s rear seats, to make changing between passengers and cargo easier. The Stinger doesn’t offer automatic folding seats.

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.

Unlike the driver-only memory system in the Stinger GT2, the C-Class Sedan 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.

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 close the windows from inside the vehicle, with the ignition on.

Consumer Reports rated the C-Class Sedan’s headlight performance “Excellent,” a higher rating than the Stinger’s headlights, which were rated “Fair.”

A power rear sunshade and manual rear side window sunshades are standard in the C-Class Sedan to help block heat and glare for the rear passengers. The Stinger doesn’t offer a rear or rear side window sunshades.

The C-Class Sedan has a 115-volt a/c outlet on the center console, allowing you to recharge a laptop or run small household appliances without special adapters that can break or get misplaced. The Stinger doesn’t offer a house-current electrical outlet.

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.

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

The Mercedes C-Class outsold the Kia Stinger by over three to one during 2022.