2020 Kia K900 vs. 2020 Lexus GS Series

Detailed Review, Specifications & Comparison

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Safety

© 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 2020/01/21

The K900’s pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The GS Series doesn’t offer pre-crash pretensioners.

Over 200 people are killed each year when backed over by motor vehicles. The K900 has standard Rear Cross-Traffic Collision Avoidance Assist that uses rear sensors to monitor and automatically apply the brakes to prevent a rear collision. The GS Series doesn’t offer backup collision prevention brakes.

To provide maximum traction and stability on all roads, All-Wheel Drive is standard on the K900. But it costs extra on the GS Series.

The K900 has a standard Surround View Monitor to allow the driver to see objects all around the vehicle on a screen. The GS Series only offers a rear monitor and front and rear parking sensors that beep or flash a light. That doesn’t help with obstacles to the sides.

Both the K900 and the GS Series 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, crash mitigating brakes, daytime running lights, lane departure warning systems, rearview cameras and driver alert monitors.

The Kia K900 weighs 771 to 936 pounds more than the Lexus GS Series. The NHTSA advises that heavier cars are much safer in collisions than their significantly lighter counterparts.

Warranty

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The K900 comes with a full 5-year/60,000-mile basic warranty, which covers the entire car and includes 24-hour roadside assistance. The GS Series’ 4-year/50,000-mile basic warranty expires 1 year and 10,000 miles sooner.

Kia’s powertrain warranty covers the K900 4 years and 30,000 miles longer than Lexus covers the GS Series. Any repair needed on the engine, transmission, axles, joints or driveshafts is fully covered for 10 years or 100,000 miles. Coverage on the GS Series ends after only 6 years or 70,000 miles.

There are over 3 times as many Kia dealers as there are Lexus dealers, which makes it much easier should you ever need service under the K900’s warranty.

Reliability

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The battery on the K900 is in the trunk, which protects it from hot underhood temperatures that can degrade battery life. By keeping the K900’s battery 20 to 30 degrees cooler, its life is increased by years. The GS Series’ battery is in the hot engine compartment.

J.D. Power and Associates’ 2019 Initial Quality Study of new car owners surveyed provide the statistics that show that Kia vehicles are better in initial quality than Lexus vehicles. J.D. Power ranks Kia second in initial quality, above the industry average. With 20 more problems per 100 vehicles, Lexus is ranked 8th.

Engine

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The K900’s 3.3 turbo V6 produces 54 more horsepower (365 vs. 311) and 96 lbs.-ft. more torque (376 vs. 280) than the GS Series’ 3.5 DOHC V6.

As tested in Motor Trend the Kia K900 is faster than the Lexus GS Series:

K900

GS Series

Zero to 60 MPH

5.4 sec

5.5 sec

Quarter Mile

13.9 sec

14 sec

Speed in 1/4 Mile

102.2 MPH

100.9 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 2020/01/21

In heavy traffic or at stoplights the K900’s engine automatically turns off when the vehicle is stopped, saving fuel and reducing pollution. The engine is automatically restarted when the driver gets ready to move again. (Start/Stop isn’t accounted in present EPA fuel mileage tests.) The GS Series doesn’t offer an automatic engine start/stop system.

To lower fuel costs and make buying fuel easier, the Kia K900 uses regular unleaded gasoline (premium recommended for maximum performance). The GS Series requires premium, which can cost 20 to 55 cents more per gallon.

The K900 has 2.9 gallons more fuel capacity than the GS Series (20.3 vs. 17.4 gallons), for longer range between fill-ups.

Brakes and Stopping

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

K900

GS Series

GS Series F Sport

Front Rotors

14.2 inches

13.1 inches

14 inches

Rear Rotors

13.4 inches

12.2 inches

12.2 inches

Tires and Wheels

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For better traction, the K900 has larger tires than the GS Series (F:245/45R19 & R:275/40R19 vs. 235/45R18). The K900’s tires are larger than the largest tires available on the GS Series (F:245/45R19 & R:275/40R19 vs. F:235/40R19 & R:265/35R19).

The K900’s 275/40R19 rear tires provide better handling because they have a lower 40 series profile (height to width ratio) that provides a stiffer sidewall than the GS Series’ standard 45 series tires.

For better ride, handling and brake cooling the K900 has standard 19-inch wheels. Smaller 18-inch wheels are standard on the GS Series.

Suspension and Handling

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For a smoother ride and more stable handling, the K900’s wheelbase is 10 inches longer than on the GS Series (122.2 inches vs. 112.2 inches).

For better handling and stability, the track (width between the wheels) on the K900 is 2.5 inches wider in the front and 1.9 inches wider in the rear than on the GS Series.

The K900 executes Motor Trend’s “Figure Eight” maneuver quicker than the GS 350 (25.7 seconds @ .72 average G’s vs. 26.1 seconds @ .72 average G’s).

Chassis

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The front grille of the K900 uses electronically controlled shutters to close off airflow and reduce drag when less engine cooling is needed. This helps improve highway fuel economy. The GS Series doesn’t offer active grille shutters.

Passenger Space

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Because it has more passenger and cargo room, the EPA rates the K900 a Large car, while the GS Series is rated a Mid-size.

The K900 has 11 cubic feet more passenger volume than the GS Series (110 vs. 99).

The K900 has 3.1 inches more front headroom, 3.4 inches more front legroom, 1.7 inches more front shoulder room, .2 inches more rear headroom and 1.5 inches more rear shoulder room than the GS Series.

For enhanced passenger comfort on long trips the K900’s available rear seats recline. The GS Series’ rear seats don’t recline.

Cargo Capacity

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To make loading groceries and cargo easier when your hands are full, the K900’s trunk can be opened just by waiting momentarily behind the back bumper, leaving your hands completely free. The GS Series doesn’t offer a hands-free gesture to open its trunk, forcing you to put cargo down if your hands are full.

Ergonomics

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The K900’s power window, power lock, power mirror and cruise control switches are lit from behind, making them plainly visible and easier to operate at night. The GS Series’ cruise control switches are unlit, making them difficult to find at night and operate safely.

The K900’s rain-sensitive wipers adjust their speed and turn on and off automatically based on the amount of rainfall on the windshield. This allows the driver to concentrate on driving without constantly adjusting the wipers. The GS Series’ standard manually variable intermittent wipers have to be constantly adjusted.

A power rear sunshade and manual rear side window sunshades are standard in the K900 to help block heat and glare for the rear passengers. The GS Series doesn’t offer rear side window sunshades.

The K900 has standard front air conditioned seats and offers them optionally in the rear. This keeps the passengers comfortable and takes the sting out of hot seats in summer. The GS Series doesn’t offer air-conditioned seats in the rear.

The K900 has a standard heated steering wheel to take the chill out of steering on extremely cold winter days before the car heater warms up. A heated steering wheel costs extra on the GS Series.

To quickly and conveniently keep personal devices charged without cables tangling and wearing out, the Kia K900 has a standard wireless phone charging system (Qi) in the center console and for the rear passengers. The GS Series doesn’t offer wireless personal charging.

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