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For enhanced safety, the front and rear seat shoulder belts of the Mercedes E-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 K900 doesn’t offer pretensioners for the rear seat belts.
The rear seatbelts optional on the E-Class Sedan inflate when a collision is detected, helping to spread crash forces over a much larger area of the body and limiting head and neck movement. This can help prevent spinal and internal injuries. The K900 doesn’t offer inflatable seatbelts.
The E-Class Sedan’s standard pretensioning seatbelts also sense rear collisions and remove slack from the seatbelts to help protect the occupants from whiplash and other injuries. The K900 doesn’t offer a whiplash protection system.
Both the E-Class Sedan and the K900 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 lane departure warning systems, around view monitors and rear cross-path warning.
For its top level performance in IIHS driver and passenger-side small overlap frontal, moderate overlap frontal, side impact, roof strength and head restraint tests, its standard front crash prevention system, and its headlight’s “Good” rating, the Insurance Institute for Highway Safety grants the E-Class Sedan its highest rating: “Top Pick Plus” for 2019, a rating granted to only 87 vehicles tested by the IIHS. The K900 has not been tested, yet.
The E-Class Sedan’s 5 year corrosion warranty has no mileage limitations, but the corrosion warranty on the K900 runs out after 100,000 miles.
On the EPA test cycle the E 450 4MATIC Sedan 4MATIC V6 gets better fuel mileage than the K900 (20 city/28 hwy vs. 18 city/25 hwy).
A nine-speed automatic is standard on the Mercedes E-Class Sedan, for better acceleration and lower engine speed on the highway. Only an eight-speed automatic is available for the K900.
The E-Class Sedan has 4-ETS, a true all-wheel-drive system, which uses a four-wheel traction control system to redirect engine power to the axle and wheel that still has traction to keep the E-Class Sedan moving if even only one wheel still has traction. The K900 doesn’t offer a true all-wheel drive system; it could get stuck while one or more wheels still have traction.
The E-Class Sedan stops much shorter than the K900:
60 to 0 MPH
The E-Class Sedan’s optional 245/40R19 front and 275/35R19 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 E-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.
The E-Class Sedan has a standard automatic front and rear load leveling suspension to keep ride height level with a heavy load or when towing. The E-Class Sedan’s height leveling suspension allows the driver to raise ride height for better off-road clearance and then lower it again for easier entering and exiting and better on-road handling. The K900 doesn’t offer a load leveling suspension.
The E-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.
The E-Class Sedan 4MATIC handles at .93 G’s, while the K900 pulls only .87 G’s of cornering force in a Motor Trend skidpad test.
The E-Class Sedan 4MATIC executes Motor Trend’s “Figure Eight” maneuver quicker than the K900 (25.1 seconds @ .77 average G’s vs. 25.7 seconds @ .72 average G’s).
For better maneuverability, the E-Class Sedan’s turning circle is 1.1 feet tighter than the K900’s (38.1 feet vs. 39.2 feet). The E 450 4MATIC Sedan’s turning circle is .2 feet tighter than the K900’s (39 feet vs. 39.2 feet).
The Mercedes E-Class Sedan may be more efficient, handle and accelerate better because it weighs about 550 to 850 pounds less than the Kia K900.
The E-Class Sedan is 7.8 inches shorter than the K900, making the E-Class Sedan easier to handle, maneuver and park in tight spaces.
A low lift-over trunk design makes loading and unloading the E-Class Sedan easier. The E-Class Sedan’s trunk lift-over height is 27.7 inches, while the K900’s liftover is 29 inches.
The E-Class Sedan’s standard rear seats fold to accommodate long and bulky cargo. The K900 doesn’t offer folding rear seats, only a ski pass-through.
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.
If the windows are left open on the E-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 K900 can only operate the windows from inside the vehicle, with the ignition on.
Heated windshield washer fluid is standard on the E-Class Sedan to defrost the washer nozzles and quickly clear ice and frost from the windshield without scraping. The K900 doesn’t offer heated windshield washer fluid.
The E-Class Sedan offers optional massaging front seats in order to maximize comfort and eliminate fatigue on long trips. Massaging seats aren’t available in the K900.
The E-Class Sedan offers an optional 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 K900 doesn’t offer a house-current electrical outlet.
The E-Class Sedan’s optional Active Parking Assist can parallel park or back into a parking spot by itself, starting, stopping and changing direction automatically. The K900 doesn’t offer an automated parking system.
The Mercedes E-Class comes in coupe, convertible, sedan and station wagon bodystyles; the Kia K900 isn’t available as a coupe, convertible or station wagon.
The E-Class Sedan is available in both rear-wheel drive and all-wheel drive configurations. The K900 doesn’t offer a two-wheel drive configuration.
Insurance will cost less for the E-Class Sedan owner. The Complete Car Cost Guide estimates that insurance for the E-Class Sedan will cost $3050 to $3445 less than the K900 over a five-year period.
The E-Class Sedan will cost the buyer less in the long run because of its superior resale value. The IntelliChoice estimates that the E-Class Sedan will retain 35.76% to 35.92% of its original price after five years, while the K900 only retains 27.93%.
IntelliChoice estimates that five-year ownership costs (depreciation, financing, insurance, fuel, fees, repairs and maintenance) for the Mercedes E-Class Sedan will be $13460 to $16120 less than for the Kia K900.
Consumer Reports® recommends the Mercedes E-Class Sedan, based on reliability, safety and performance.
The E 450/E 53 was chosen as one of Car and Driver’s “Top Ten” for 2 of the last 3 years. The K900 has never been a Car and Driver “Top Ten” pick.
The Mercedes E-Class/CLS outsold the Kia K900 by almost 103 to one during 2019.
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