2019 Mercedes C-Class Sedan vs. 2019 Kia K900

Detailed Review, Specifications & Comparison

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Safety

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 K900 doesn’t offer pretensioners for the rear seat belts.

To help make backing safer, the C-Class Sedan’s optional 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 K900 doesn’t offer a cross-path warning system.

The C-Class Sedan has standard Mercedes-Benz Emergency Call, which uses a global positioning satellite (GPS) receiver and a cellular system to get turn-by-turn driving directions, remotely unlock your doors if you lock your keys in, help track down your vehicle if it’s stolen or send emergency personnel to the scene if any airbags deploy. The K900 doesn’t offer a GPS response system, only a navigation computer with no live response for emergencies, so if you’re involved in an accident and you’re incapacitated help may not come as quickly.

Both the C-Class Sedan and the K900 have standard driver and passenger frontal airbags, front and rear 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, rearview cameras, driver alert monitors, available all wheel drive, lane departure warning systems, blind spot warning systems and around view monitors.

For its top level performance in all IIHS frontal, side, rear impact and roof-crush tests, and with its optional front crash prevention system, the Insurance Institute for Highway Safety grants the C-Class Sedan the rating of “Top Pick” for 2017, a rating granted to only 139 vehicles tested by the IIHS. The K900 has not been tested, yet.

Warranty

The C-Class Sedan’s 5 year corrosion warranty has no mileage limitations, but the corrosion warranty on the K900 runs out after 100,000 miles.

Engine

The AMG C 43 Sedan’s standard 3.0 turbo V6 produces 20 more horsepower (385 vs. 365) and 8 lbs.-ft. more torque (384 vs. 376) than the K900’s 3.3 turbo V6.

Fuel Economy and Range

On the EPA test cycle the C 300 4MATIC Sedan gets better fuel mileage than the K900 (22 city/33 hwy vs. 18 city/25 hwy).

Transmission

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 K900.

Brakes and Stopping

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 K900 are solid, not vented.

Tires and Wheels

The C-Class Sedan’s optional 225/40R19 front and 255/35R19 rear tires provide better handling because they have a lower 40 series front and 35 series rear profile (height to width ratio) that provides a stiffer sidewall than the K900’s 45 series front and 40 series rear 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 K900 doesn’t offer run-flat tires.

Suspension and Handling

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 K900 doesn’t offer drift compensation steering.

Chassis

The C-Class Sedan is 1 foot, 5.1 inches shorter than the K900, 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 K900 doesn’t offer active grille shutters.

Cargo Capacity

The C-Class Sedan’s optional rear seats fold to accommodate long and bulky cargo. The K900 doesn’t offer folding rear seats, only a ski pass-through.

Servicing Ease

J.D. Power and Associates surveys of service recipients show that Mercedes service is better than Kia. J.D. Power ranks Mercedes 6th in service department satisfaction (above the industry average). With a 42% lower rating, Kia is ranked 18th.

Ergonomics

The C-Class Sedan’s optional Active Parking Assist can parallel park or back into a parking spot by itself, with the driver only controlling speed with the brake pedal. The K900 doesn’t offer an automated parking system.

Model Availability

The Mercedes C-Class comes in coupe, convertible and sedan bodystyles; the Kia K900 isn’t available as a coupe or convertible.

The C-Class Sedan is available in both rear-wheel drive and all-wheel drive configurations. The K900 doesn’t offer a two-wheel drive configuration.

Recommendations

The C-Class Sedan was chosen as one of Automobile Magazine’s “All Stars” in 2015. The K900 has never been an “All Star.”

The Mercedes C-Class outsold the Kia K900 by over 167 to one during the 2018 model year.

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

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