Compare the2023 Audi S3VS 2023 Kia Stinger

The S3’s pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The Stinger doesn’t offer pre-crash pretensioners.

Both the S3 and Stinger have child safety locks to prevent children from opening the rear doors. The S3 has power child safety locks, allowing the driver to activate and deactivate them from the driver's seat and to know when they're engaged. The Stinger’s child locks have to be individually engaged at each rear door with a manual switch. The driver can’t know the status of the locks without opening the doors and checking them.

The Audi S3 has standard driver and front passenger side knee airbags mounted low on the dashboard. These airbags helps prevent the driver and front passenger from sliding under their seatbelts or the main frontal airbags; this keeps them better positioned during a collision for maximum protection. Knee airbags also help keep the legs from striking the dashboard, preventing knee and leg injuries in the case of a serious frontal collision. The Stinger doesn’t offer a front passenger side knee airbag.

The S3 has a standard Secondary Collision Brake Assist, which automatically applies the brakes in the event of a crash to help prevent secondary collisions and prevent further injuries. The Stinger 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.

To provide maximum traction and stability on all roads, All-Wheel Drive is standard on the S3. But it costs extra on the Stinger.

Both the S3 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, crash mitigating brakes, daytime running lights, lane departure warning systems, rearview cameras, available blind spot warning systems and rear cross-path warning.

The S3’s corrosion warranty is 7 years and unlimited miles longer than the Stinger’s (12/unlimited vs. 5/100,000).

The Audi S3’s engine uses a cast iron block for durability, while the Stinger’s engines use an aluminum block. Aluminum engine blocks are much more prone to warp and crack at high temperatures than cast iron.

From surveys of all its subscribers, Consumer Reports’ January 2021 Auto Issue reports that Audi vehicles are more reliable than Kia vehicles. Consumer Reports ranks Audi 1 place higher in reliability than Kia.

The S3’s 2.0 turbo 4-cylinder produces 6 more horsepower (306 vs. 300) than the Stinger GT-Line’s standard 2.5 turbo 4-cylinder.

On the EPA test cycle the S3 gets better mileage than the Stinger:

To lower fuel costs and make buying fuel easier, the Audi S3 uses regular unleaded gasoline (premium recommended for maximum performance). The Stinger requires premium, which can cost 20 to 55 cents more per gallon.

In its Green Vehicle Guide, the U.S. Environmental Protection Agency (EPA) rates the Audi S3 higher (5 out of 10) than the Kia Stinger (3). This means the S3 produces up to 16.5 pounds less smog-producing pollutants than the Stinger every 15,000 miles.

The S3 offers a standard sequential manual gearbox (SMG). With no clutch pedal to worry about and a fully automatic mode, an SMG is much more efficient than a conventional automatic but just as easy to drive. The Stinger doesn’t offer an SMG or a conventional manual transmission.

For better stopping power the S3’s front brake rotors are larger than those on the Stinger:

The S3’s standard front and rear disc brakes are vented to help dissipate heat for shorter stops with less fading. The rear discs standard on the Stinger GT-Line are solid, not vented.

For better traction, the S3’s optional tires are larger than the largest tires available on the Stinger (235/35R19 vs. 225/40R19).

The S3’s standard tires provide better handling because they have a lower 40 series profile (height to width ratio) that provides a stiffer sidewall than the Stinger GT-Line’s standard 45 series tires. The S3’s optional tires have a lower 35 series profile than the Stinger GT2’s 40 series front tires.

Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires available on the S3 can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The Stinger doesn’t offer run-flat tires.

For better maneuverability, the S3’s turning circle is .3 feet tighter than the Stinger’s (36.4 feet vs. 36.7 feet). The S3’s turning circle is 2 feet tighter than the Stinger AWD’s (36.4 feet vs. 38.4 feet).

The Audi S3 may be more efficient, handle and accelerate better because it weighs about 300 to 650 pounds less than the Kia Stinger.

The S3 is 1 foot shorter than the Stinger, making the S3 easier to handle, maneuver and park in tight spaces.

The S3 has a 3500 lbs. towing capacity. The Stinger has no towing capacity.

J.D. Power and Associates surveys of service recipients show that Audi service is better than Kia. J.D. Power ranks Audi 8th in service department satisfaction (above the industry average). With a 31% lower rating, Kia is ranked 26th.

The S3’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 Stinger’s rear power window switches have to be held the entire time to open or close them fully.

If the windows are left open on the S3 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 Stinger can only close the windows from inside the vehicle, with the ignition on.

Heated windshield washer nozzles are standard on the S3 to prevent washer fluid and nozzles from freezing and help continue to keep the windshield clear in sub-freezing temperatures. The Stinger doesn’t offer heated windshield washer nozzles.

In poor weather, headlights can lose their effectiveness as grime builds up on their lenses. This can reduce visibility without the driver realizing. The S3 Prestige has standard headlight washers to keep headlight output high. The Stinger doesn’t offer headlight washers.

The S3’s Park Assist can parallel park or back into a parking spot by itself, with the driver only controlling speed with the brake pedal. The Stinger doesn’t offer an automated parking system.

The S3 will cost the buyer less in the long run because of its superior resale value. The IntelliChoice estimates that the S3 will retain 50.76% to 50.94% of its original price after five years, while the Stinger only retains 43.02% to 43.71%.