2020 Buick Regal Sportback vs. 2020 Kia Stinger

Detailed Review, Specifications & Comparison

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Safety

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Both the Regal Sportback and the Stinger have standard driver and passenger frontal airbags, front 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, daytime running lights, rearview cameras, available crash mitigating brakes, lane departure warning systems, blind spot warning systems, front and rear parking sensors and rear cross-path warning.

Warranty

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The Regal Sportback’s corrosion warranty is 1 year and unlimited miles longer than the Stinger’s (6/unlimited vs. 5/100,000).

There are almost 3 times as many Buick dealers as there are Kia dealers, which makes it much easier should you ever need service under the Regal Sportback’s warranty.

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 Buick vehicles are more reliable than Kia vehicles. J.D. Power ranks Buick fifth in reliability, above the industry average. With 8 more problems per 100 vehicles, Kia is ranked 10th.

Engine

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As tested in Car and Driver the Buick Regal Sportback turbo 4 cyl. is faster than the Stinger GT-Line 2.0 turbo 4-cylinder:

Regal Sportback

Stinger

Zero to 60 MPH

5.6 sec

6.1 sec

Zero to 100 MPH

13.8 sec

16.2 sec

5 to 60 MPH Rolling Start

6.1 sec

7.4 sec

Passing 30 to 50 MPH

2.9 sec

3.5 sec

Passing 50 to 70 MPH

4 sec

4.5 sec

Quarter Mile

14.2 sec

14.7 sec

Speed in 1/4 Mile

101 MPH

95 MPH

Fuel Economy and Range

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On the EPA test cycle the Regal Sportback gets better fuel mileage than the Stinger:

Regal Sportback

Stinger

2WD

2.0 turbo 4 cyl./Auto

22 city/32 hwy

22 city/29 hwy

2.0 4 cyl./Auto

n/a

17 city/25 hwy

3.3 V6/Auto

AWD

3.6 V6/Auto

19 city/27 hwy

17 city/25 hwy

3.3 V6/Auto

The Regal Sportback has a standard cap-less fueling system. The fuel filler is automatically opened when the fuel nozzle is inserted and automatically closed when it’s removed. This eliminates the need to unscrew and replace the cap and it reduces fuel evaporation, which causes pollution. The Stinger doesn’t offer a cap-less fueling system.

Environmental Friendliness

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In its Green Vehicle Guide, the U.S. Environmental Protection Agency (EPA) rates the Buick Regal Sportback higher (5 to 6 out of 10) than the Kia Stinger (3). This means the Regal Sportback produces up to 23.4 pounds less smog-producing pollutants than the Stinger every 15,000 miles.

Transmission

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A nine-speed automatic is standard on the Buick Regal Sportback, for better acceleration and lower engine speed on the highway. Only an eight-speed automatic is available for the Stinger.

Brakes and Stopping

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In an emergency stopping situation, many drivers don’t press the brakes with enough force to stop the vehicle in the shortest distance. The Regal Sportback has a standard brake assist system to detect emergency braking situations (by how hard and how quickly the brake pedal is pressed) and then automatically apply maximum braking immediately in order to help prevent a collision. The Stinger doesn’t offer a brake assist feature.

The Regal Sportback stops much shorter than the Stinger:

Regal Sportback

Stinger

70 to 0 MPH

162 feet

182 feet

Car and Driver

60 to 0 MPH

119 feet

126 feet

Motor Trend

60 to 0 MPH (Wet)

133 feet

142 feet

Consumer Reports

Tires and Wheels

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For better traction, the Regal Sportback’s optional tires are larger than the largest tires available on the Stinger (245/45R18 vs. 225/40R19).

Chassis

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The Regal Sportback AWD uses computer-generated active noise cancellation to help remove annoying noise and vibration from the passenger compartment, especially at low frequencies. The Stinger doesn’t offer active noise cancellation.

As tested by Car and Driver, the interior of the Regal Sportback Essence is quieter than the Stinger GT2:

Regal Sportback

Stinger

At idle

37 dB

39 dB

Full-Throttle

75 dB

84 dB

70 MPH Cruising

70 dB

71 dB

Passenger Space

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Because it has more passenger and cargo room, the EPA rates the Regal Sportback a Large car, while the Stinger is rated a Mid-size.

The Regal Sportback has 4.2 cubic feet more passenger volume than the Stinger (98 vs. 93.8).

The Regal Sportback has .5 inches more front headroom, .5 inches more front shoulder room, .4 inches more rear headroom, .5 inches more rear legroom and .6 inches more rear shoulder room than the Stinger.

Cargo Capacity

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The Regal Sportback has a much larger trunk with its rear seat up than the Stinger with its rear seat up (31.5 vs. 23.3 cubic feet). The Regal Sportback has a much larger trunk with its rear seat folded than the Stinger with its rear seat folded (60.7 vs. 40.9 cubic feet).

Servicing Ease

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J.D. Power and Associates surveys of service recipients show that Buick service is better than Kia. J.D. Power ranks Buick 8th in service department satisfaction (above the industry average). With a 32% lower rating, Kia is ranked 20th.

Ergonomics

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Unlike the driver-only memory system in the Stinger GT1/GT2, the Regal Sportback offers an optional driver and passenger memory, so that when drivers switch, the memory setting adjusts the driver’s seat and outside mirror angle and the front passenger seat also adjusts to the new passenger’s preset preferences.

The Regal Sportback’s instruments include an oil pressure gauge and a temperature gauge - which could save your engine! Often ‘idiot lights’ don’t warn you until damage has been done. The Stinger does not have an oil pressure gauge.

The Regal Sportback’s power parking brake sets with one touch and releases with one touch or automatically. The Stinger’s parking brake has to released manually.

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

The Regal Sportback GS has standard massaging front seats in order to maximize comfort and eliminate fatigue on long trips. Massaging seats aren’t available in the Stinger.

Model Availability

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The Buick Regal comes in four door hatchback and station wagon bodystyles; the Kia Stinger isn’t available as a station wagon.

Economic Advantages

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Insurance will cost less for the Regal Sportback owner. The Complete Car Cost Guide estimates that insurance for the Regal Sportback will cost $1460 less than the Stinger over a five-year period.

IntelliChoice estimates that five-year ownership costs (depreciation, financing, insurance, fuel, fees, repairs and maintenance) for the Buick Regal Sportback will be $8541 to $16012 less than for the Kia Stinger.

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 2020/07/15

Consumer Reports performed a comparison test in its May 2018 issue and the Buick Regal Sportback Essence AWD won out over the Kia Stinger AWD.

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