2021 BMW 5 Series Sedan vs. 2020 Kia K900

Detailed Review, Specifications & Comparison

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Safety

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The 5 Series Sedan has standard PostCrash iBrake, which automatically apply the brakes in the event of a crash to help prevent secondary collisions and prevent further injuries. The K900 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.

A passive infrared night vision system optional on the 5 Series Sedan helps the driver to more easily detect people, animals or other objects in front of the vehicle at night. Using an infrared camera to detect heat, the system then displays the image on a monitor in the dashboard. The K900 doesn’t offer a night vision system.

Both the 5 Series Sedan and the K900 have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, front seatbelt pretensioners, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, lane departure warning systems, blind spot warning systems, rearview cameras, rear cross-path warning, driver alert monitors, available all wheel drive and around view monitors.

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 5 Series Sedan its highest rating: “Top Pick Plus” for 2019, a rating granted to only 82 vehicles tested by the IIHS. The K900 has not been tested, yet.

Warranty

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The 5 Series Sedan’s corrosion warranty is 7 years and unlimited miles longer than the K900’s (12/unlimited vs. 5/100,000).

BMW pays for scheduled maintenance on the 5 Series Sedan for 3 years and 36,000 miles. BMW will pay for oil changes, lubrication and any other required maintenance. Kia doesn’t pay scheduled maintenance for the K900.

Reliability

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J.D. Power and Associates’ 2019 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that BMW vehicles are more reliable than Kia vehicles. J.D. Power ranks BMW 7th in reliability, above the industry average. With 4 more problems per 100 vehicles, Kia is ranked 10th.

Engine

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The M550i’s standard 4.4 turbo V8 produces 158 more horsepower (523 vs. 365) and 177 lbs.-ft. more torque (553 vs. 376) than the K900’s 3.3 turbo V6.

As tested in Motor Trend the 540i is faster than the Kia K900:

5 Series

K900

Zero to 60 MPH

4.9 sec

5.4 sec

Quarter Mile

13.5 sec

13.9 sec

Speed in 1/4 Mile

106.2 MPH

102.2 MPH

Fuel Economy and Range

© 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 2020/10/29

On the EPA test cycle the 5 Series Sedan gets better fuel mileage than the K900:

MPG

5 Series Sedan

RWD

530i 2.0 turbo 4-cyl.

25 city/33 hwy

540i 3.0 turbo 6-cyl. Hybrid

25 city/32 hwy

AWD

530i 2.0 turbo 4-cyl.

23 city/32 hwy

540i 3.0 turbo 6-cyl. Hybrid

23 city/31 hwy

K900

AWD

3.3 turbo V6

18 city/25 hwy

Regenerative brakes improve the 5 Series Sedan’s fuel efficiency by converting inertia back into energy instead of wasting it. The K900 doesn’t offer a regenerative braking system.

Transmission

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The 5 Series Sedan’s launch control uses engine electronics to hold engine RPM’s precisely in order to provide the most stable and rapid acceleration possible, using all of the available traction. The K900 doesn’t offer launch control.

Brakes and Stopping

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For better stopping power the M550i’s front brake rotors are larger than those on the K900:

M550i

K900

Front Rotors

14.7 inches

14.2 inches

Rear Rotors

13.6 inches

13.4 inches

The 5 Series Sedan stops much shorter than the K900:

5 Series Sedan

K900

60 to 0 MPH

103 feet

121 feet

Motor Trend

Tires and Wheels

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The 5 Series Sedan’s optional 245/35R20 front and 275/30R20 rear tires provide better handling because they have a lower 35 series front and 30 series rear profile (height to width ratio) that provides a stiffer sidewall than the K900’s 45 series front and 40 series rear tires.

For better ride, handling and brake cooling the 5 Series Sedan offers optional 20-inch wheels. The K900’s largest wheels are only 19-inches.

Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires standard on the 5 Series 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

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The 5 Series Sedan 540i/M550i offers active sway bars, which help keep it flat and controlled during cornering, but disconnect at lower speeds to smooth the ride and offer greater off-road suspension articulation. This helps keep the tires glued to the road on-road and off. The K900 doesn’t offer an active sway bar system.

The M550i offers an available adjustable active suspension system, which counteracts cornering forces actively, limiting body roll and improving handling and stability. Kia doesn’t offer an active suspension on the K900.

The M550i xDrive handles at .92 G’s, while the K900 pulls only .87 G’s of cornering force in a Motor Trend skidpad test.

The M550i xDrive executes Motor Trend’s “Figure Eight” maneuver quicker than the K900 (24.9 seconds @ .77 average G’s vs. 25.7 seconds @ .72 average G’s).

Chassis

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The BMW 5 Series Sedan may be more efficient, handle and accelerate better because it weighs about 400 to 900 pounds less than the Kia K900.

The 5 Series Sedan is 5.8 inches shorter than the K900, making the 5 Series Sedan easier to handle, maneuver and park in tight spaces.

Cargo Capacity

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A low lift-over trunk design makes loading and unloading the 5 Series Sedan easier. The 5 Series Sedan’s trunk lift-over height is 26.2 inches, while the K900’s liftover is 29 inches.

The 5 Series 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.

Ergonomics

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If the windows are left open on the 5 Series 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.

The 5 Series 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 5 Series Sedan’s optional Parking Assistant Plus can parallel park or back into a parking spot by itself, starting, stopping and changing direction automatically. Optional Remote Control Parking will park and retrieve your car remotely: press a button and watch it park itself. This is ideal for tight locations. The K900 doesn’t offer an automated parking system.

Model Availability

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The 5 Series Sedan is available in both rear-wheel drive and all-wheel drive configurations. The K900 doesn’t offer a two-wheel drive configuration.

Economic Advantages

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The 5 Series Sedan will cost the buyer less in the long run because of its superior resale value. The IntelliChoice estimates that the 5 Series Sedan will retain 36.99% to 39.18% of its original price after five years, while the K900 only retains 29.31%.

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 2020/10/29

The BMW 5 Series outsold the Kia K900 by over 99 to one during 2019.

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