2018 Kia Cadenza vs. 2018 Mercedes E-Class Sedan

Detailed Review, Specifications & Comparison

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Safety

Both the Cadenza and the E-Class Sedan have standard driver and passenger frontal airbags, front and rear side-impact airbags, driver knee airbags, side-impact head airbags, front seatbelt pretensioners, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, rearview cameras, available crash mitigating brakes, lane departure warning systems, blind spot warning systems, around view monitors and rear cross-path warning.

Warranty

The Cadenza comes with a full 5-year/60,000-mile basic warranty, which covers the entire car and includes 24-hour roadside assistance. The E-Class Sedan’s 4-year/50,000-mile basic warranty expires 1 year and 10,000 miles sooner.

Kia’s powertrain warranty covers the Cadenza 6 years and 50,000 miles longer than Mercedes covers the E-Class Sedan. Any repair needed on the engine, transmission, axles, joints or driveshafts is fully covered for 10 years or 100,000 miles. Coverage on the E-Class Sedan ends after only 4 years or 50,000 miles.

There are over 2 times as many Kia dealers as there are Mercedes dealers, which makes it much easier should you ever need service under the Cadenza’s warranty.

Reliability

J.D. Power and Associates rated the Cadenza first among large cars in their 2017 Initial Quality Study. The E-Class Sedan isn’t in the top three in its category.

J.D. Power and Associates’ 2017 Initial Quality Study of new car owners surveyed provide the statistics that show that Kia vehicles are better in initial quality than Mercedes vehicles. J.D. Power ranks Kia first in initial quality, above the industry average. With 30 more problems per 100 vehicles, Mercedes is ranked 17th, below the industry average.

J.D. Power and Associates’ 2018 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Kia vehicles are more reliable than Mercedes vehicles. J.D. Power ranks Kia fifth in reliability, above the industry average. With 25 more problems per 100 vehicles, Mercedes is ranked 15th.

From surveys of all its subscribers, Consumer Reports’ April 2017 Auto Issue reports that Kia vehicles are more reliable than Mercedes vehicles. Consumer Reports ranks Kia 12 places higher in reliability than Mercedes.

Engine

The Cadenza’s 3.3 DOHC V6 produces 49 more horsepower (290 vs. 241) than the E 300 Sedan’s standard 2.0 turbo 4 cyl.

As tested in Consumer Reports the Kia Cadenza is faster than the E 300 Sedan 2.0 turbo 4 cyl.:

 

Cadenza

E-Class Sedan

Zero to 60 MPH

7 sec

7.1 sec

45 to 65 MPH Passing

4.4 sec

4.7 sec

Quarter Mile

15.3 sec

15.6 sec

Speed in 1/4 Mile

98 MPH

93 MPH

Fuel Economy and Range

To lower fuel costs and make buying fuel easier, the Kia Cadenza uses regular unleaded gasoline. The E-Class Sedan requires premium, which can cost 20 to 55 cents more per gallon.

The Cadenza has 1.1 gallons more fuel capacity than the E-Class Sedan 300/400’s standard fuel tank (18.5 vs. 17.4 gallons), for longer range between fill-ups.

Brakes and Stopping

The Cadenza stops shorter than the E-Class Sedan:

 

Cadenza

E-Class Sedan

 

60 to 0 MPH

127 feet

128 feet

Consumer Reports

60 to 0 MPH (Wet)

141 feet

143 feet

Consumer Reports

Suspension and Handling

For better maneuverability, the Cadenza’s turning circle is .9 feet tighter than the E-Class Sedan’s (37.2 feet vs. 38.1 feet).

Passenger Space

Because it has more passenger and cargo room, the Cadenza is rated a Large car by the EPA, while the E-Class Sedan is rated a Mid-size.

The Cadenza has 9.8 cubic feet more passenger volume than the E-Class Sedan (107.8 vs. 98).

The Cadenza has 3.8 inches more front legroom, .5 inches more front shoulder room and 1.1 inches more rear legroom than the E-Class Sedan.

Cargo Capacity

The Cadenza has a much larger trunk than the E-Class Sedan (16 vs. 13.1 cubic feet).

Ergonomics

Consumer Reports rated the Cadenza’s headlight performance “Good,” a higher rating than the E-Class Sedan’s headlights, which were rated “Poor.”

To shield the driver and front passenger’s vision over a larger portion of the windshield and side windows, the Cadenza has standard extendable sun visors. The E-Class Sedan doesn’t offer extendable visors.

The Cadenza has standard heated front seats. Heated front seats cost extra on the E-Class Sedan. The Cadenza Limited also has standard heated rear seats to keep those passengers extremely comfortable in the winter. Heated rear seats aren’t available in the E-Class Sedan.

Economic Advantages

IntelliChoice estimates that five-year ownership costs (depreciation, financing, insurance, fuel, fees, repairs and maintenance) for the Kia Cadenza will be $6034 to $16241 less than for the Mercedes E-Class Sedan.

Recommendations

Consumer Reports® recommends both the Kia Cadenza and the Mercedes E-Class Sedan, based on reliability, safety and performance.

J.D. Power and Associates rated the Cadenza first among large cars in owner reported satisfaction. This includes how well the vehicle performs and satisfies its owner’s expectations. The E-Class Sedan isn’t in the top three.

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

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