2020 Kia K900 vs. 2019 Infiniti Q70

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 2020/01/18

To provide maximum traction and stability on all roads, All-Wheel Drive is standard on the K900. But it costs extra on the Q70.

The K900’s driver alert monitor detects an inattentive driver then sounds a warning and suggests a break. According to the NHTSA, drivers who fall asleep cause about 100,000 crashes and 1500 deaths a year. The Q70 doesn’t offer a driver alert monitor.

Both the K900 and the Q70 have standard driver and passenger frontal airbags, front side-impact 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, daytime running lights and around view monitors.

Warranty

© 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 2020/01/18

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 Q70’s 4-year/60,000-mile basic warranty expires 1 year sooner.

Kia’s powertrain warranty covers the K900 4 years and 30,000 miles longer than Infiniti covers the Q70. Any repair needed on the engine, transmission, axles, joints or driveshafts is fully covered for 10 years or 100,000 miles. Coverage on the Q70 ends after only 6 years or 70,000 miles.

There are almost 4 times as many Kia dealers as there are Infiniti dealers, which makes it much easier should you ever need service under the K900’s warranty.

Reliability

© 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 2020/01/18

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 Q70’s 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 Infiniti vehicles. J.D. Power ranks Kia second in initial quality, above the industry average. With 31 more problems per 100 vehicles, Infiniti is ranked 19th, below the industry average.

J.D. Power and Associates’ 2019 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Kia vehicles are more reliable than Infiniti vehicles. J.D. Power ranks Kia 10th in reliability, above the industry average. With 2 more problems per 100 vehicles, Infiniti is ranked 11th.

From surveys of all its subscribers, Consumer Reports’ December 2019 Auto Issue reports that Kia vehicles are more reliable than Infiniti vehicles. Consumer Reports ranks Kia 4 places higher in reliability than Infiniti.

Engine

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The K900’s 3.3 turbo V6 produces 35 more horsepower (365 vs. 330) and 106 lbs.-ft. more torque (376 vs. 270) than the Q70 3.7 LUXE’s standard 3.7 DOHC V6.

As tested in Motor Trend the Kia K900 is faster than the Q70 3.7 LUXE 3.7 DOHC V6:

K900

Q70

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

99.6 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 2020/01/18

On the EPA test cycle the K900 gets better fuel mileage than the Q70 5.6 LUXE AWD V8 (18 city/25 hwy vs. 16 city/23 hwy).

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 Q70 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 Q70 requires premium, which can cost 20 to 55 cents more per gallon.

Transmission

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An eight-speed automatic is standard on the Kia K900, for better acceleration and lower engine speed on the highway. Only a seven-speed automatic is available for the Q70.

Brakes and Stopping

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For better stopping power the K900’s brake rotors are larger than those on the Q70:

K900

Q70

Q70 Sport

Front Rotors

14.2 inches

12.6 inches

14 inches

Rear Rotors

13.4 inches

12.1 inches

13.8 inches

Tires and Wheels

© 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 2020/01/18

For better traction and acceleration, the K900 has larger rear tires than the Q70 (275/40R19 vs. 245/40R20).

The K900’s 245/45R19 front and 275/40R19 rear tires provide better handling because they have a lower 45 series front and 40 series rear profile (height to width ratio) that provides a stiffer sidewall than the Q70’s standard 50 series tires.

For better ride, handling and brake cooling the K900 has standard 19-inch wheels. Smaller 18-inch wheels are standard on the Q70.

Suspension and Handling

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The K900 has a standard driver-adjustable suspension system. It allows the driver to choose between an extra-supple ride, reducing fatigue on long trips, or a sport setting, which allows maximum control for tricky roads. The Q70’s suspension doesn’t offer adjustable shock absorbers.

For a smoother ride and more stable handling, the K900’s wheelbase is 8 inches longer than on the Q70 (122.2 inches vs. 114.2 inches). The K900’s wheelbase is 2.1 inches longer than on the Q70L (122.2 inches vs. 120.1 inches).

For better handling and stability, the track (width between the wheels) on the K900 is 2.5 inches wider in the front and 2.8 inches wider in the rear than the average track on the Q70.

The K900 handles at .87 G’s, while the Q70 5.6 LUXE AWD pulls only .84 G’s of cornering force in a Motor Trend skidpad test.

The K900 executes Motor Trend’s “Figure Eight” maneuver 1 seconds quicker than the Q70 5.6 LUXE AWD (25.7 seconds @ .72 average G’s vs. 26.7 seconds @ .67 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 Q70 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 Q70 is rated a Mid-size.

The K900 has 6.4 cubic feet more passenger volume than the Q70 (110 vs. 103.6).

The K900 has 2 inches more front headroom, 1.3 inches more front legroom, .6 inches more front shoulder room, .3 inches more rear headroom, .4 inches more rear legroom and .5 inches more rear shoulder room than the Q70.

For enhanced passenger comfort on long trips the K900’s available rear seats recline. The Q70’s rear seats don’t recline.

Cargo Capacity

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To make loading and unloading groceries and cargo easier when your hands are full, the K900’s power trunk can be opened just by waiting momentarily behind the back bumper, leaving your hands completely free. The K900’s power trunk can also be opened or closed by pressing a button. The Q70 doesn’t offer a power or hands-free opening trunk.

Ergonomics

© 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 2020/01/18

The K900 has a standard remote vehicle starting system, so the vehicle can be started from inside the driver's house. This allows the driver to comfortably warm up the engine before going out to the vehicle. The climate system will also automatically heat or cool the interior. The Q70 doesn’t offer a remote starting system.

Unlike the driver-only memory system in the Q70, the K900 has standard driver and passenger memory, so that when drivers switch, the memory setting adjusts the driver’s seat, steering wheel position and outside mirror angle and the front passenger seat also adjusts to the new passenger’s preset preferences.

The K900 has a standard heads-up display that projects speed and other key instrumentation readouts in front of the driver’s line of sight, allowing drivers to view information without diverting their eyes from the road. The Q70 doesn’t offer a heads-up display.

The K900’s power parking brake sets with one touch and releases with one touch or automatically. The Q70’s parking brake has to released manually.

The power windows standard on both the K900 and the Q70 have locks to prevent small children from operating them. When the lock on the K900 is engaged the driver can still operate all of the windows, for instance to close one opened by a child. The Q70 prevents the driver from operating the other windows just as it does the other passengers.

The K900’s front and rear power windows all open or close fully with one touch of the switches, making it more convenient at drive-up windows and toll booths, or when talking with someone outside the car. The Q70’s rear power window switches have to be held the entire time to open or close them fully.

While driving with high beams on, sensitive light sensors standard on the K900 detect other vehicles which could be blinded and automatically switch to low beams. The Q70 doesn’t offer automatic dimming high beams.

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 Q70 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 Q70.

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 Q70 doesn’t offer wireless personal charging.

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