Compare the2023 Kia Stinger VS 2021 Mercedes AMG A-Class

For enhanced safety, the front seat shoulder belts of the Kia Stinger are height-adjustable to accommodate a wide variety of driver and passenger heights. A better fit can prevent injuries and the increased comfort also encourages passengers to buckle up. The Mercedes AMG A-Class doesn’t offer height-adjustable seat belts.

In the past twenty years hundreds of infants and young children have died after being left in vehicles, usually by accident. When turning the vehicle off, drivers of the Stinger are reminded to check the back seat if they opened the rear door before starting out. The AMG A-Class doesn’t offer a back seat reminder.

The Stinger has standard Active Headrests, which use a specially designed headrest to protect the driver and front passenger from whiplash. During a rear-end collision, the Active Headrests system moves the headrests forward to prevent neck and spine injuries. The AMG A-Class doesn’t offer a whiplash protection system.

The Stinger’s standard lane departure warning system alerts a temporarily inattentive driver when the vehicle begins to leave its lane and gently nudges the vehicle back towards its lane. A lane departure warning system costs extra on the AMG A-Class.

To help make backing out of a parking space safer, the Stinger’s standard rear cross-path warning system uses sensors in the rear bumper to alert the driver to vehicles approaching from the side, helping the driver avoid collisions. The AMG A-Class doesn’t offer a cross-path warning system.

Both the Stinger and the AMG A-Class 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, blind spot warning systems, rearview cameras, 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 vehicle-to-vehicle front crash prevention system, with its optional vehicle-to-pedestrian front crash prevention system, and its standard headlight’s “Good” rating, the Insurance Institute for Highway Safety grants the Stinger its highest rating: “Top Safety Pick Plus” for 2022, a rating granted to only 80 vehicles tested by the IIHS. The AMG A-Class has not been tested, yet.

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

Kia’s powertrain warranty covers the Stinger 6 years and 50,000 miles longer than Mercedes covers the AMG A-Class. Any repair needed on the engine, transmission, axles, joints or driveshafts is fully covered for 10 years or 100,000 miles. Coverage on the AMG A-Class ends after only 4 years or 50,000 miles.

There are over 2 times as many Kia dealers as there are Mercedes dealers, which makes it much easier should you ever need service under the Stinger’s warranty.

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

A reliable vehicle saves its owner time, money and trouble. Nobody wants to be stranded or have to be without a vehicle while it’s being repaired. Consumer Reports rates the Stinger’s reliability 12 points higher than the AMG A-Class.

J.D. Power and Associates’ 2021 Initial Quality Study of new car owners surveyed provide the statistics that show that Kia vehicles are better in initial quality than Mercedes vehicles. J.D. Power ranks Kia above average in initial quality. With 46 more problems per 100 vehicles, Mercedes is rated below average.

J.D. Power and Associates’ 2022 survey of the owners of three-year-old vehicles provides the statistics that show that Kia vehicles are more reliable than Mercedes vehicles. J.D. Power ranks Kia first in reliability, above the industry average. With 50 more problems per 100 vehicles, Mercedes is ranked 18th.

From surveys of all its subscribers, Consumer Reports’ January 2021 Auto Issue reports that Kia vehicles are more reliable than Mercedes vehicles. Consumer Reports ranks Kia 5 places higher in reliability than Mercedes.

The Stinger GT-Line’s standard 2.5 turbo 4-cylinder produces 16 lbs.-ft. more torque (311 vs. 295) than the AMG A-Class’ 2.0 turbo 4-cylinder. The Stinger GT2’s standard 3.3 turbo V6 produces 66 more horsepower (368 vs. 302) and 81 lbs.-ft. more torque (376 vs. 295) than the AMG A-Class’ 2.0 turbo 4-cylinder.

The Stinger has 2.4 gallons more fuel capacity than the AMG A-Class (15.9 vs. 13.5 gallons), for longer range between fill-ups.

An eight-speed automatic is standard on the Kia Stinger, for better acceleration and lower engine speed on the highway. Only a seven-speed automatic is available for the AMG A-Class.

The Stinger stops shorter than the AMG A-Class:

	Stinger	AMG A-Class
70 to 0 MPH	156 feet	161 feet	Car and Driver

The Stinger has a standard space-saver spare tire so you can replace a flat tire and drive to have the flat repaired or replaced. A spare tire isn’t available on the AMG A-Class; it requires you to depend on its run-flat tires, which limits mileage and speed before they are repaired. If a run-flat is damaged beyond repair by a road hazard your vehicle will have to be towed. Some tire options on the AMG A-Class don’t have a run-flat feature, either.

For a smoother ride and more stable handling, the Stinger’s wheelbase is 7 inches longer than on the AMG A-Class (114.4 inches vs. 107.4 inches).

For better handling and stability, the average track (width between the wheels) on the Stinger is .9 inches wider in the front and 2.5 inches wider in the rear than the track on the AMG A-Class.

As tested by Car and Driver, the interior of the Stinger is quieter than the AMG A 35:

	Stinger	AMG A-Class
At idle	37 dB	42 dB
Full-Throttle	78 dB	85 dB
70 MPH Cruising	70 dB	72 dB

Because it has more passenger and cargo room, the EPA rates the Stinger a Mid-size car, while the AMG A-Class is rated a Compact.

The Stinger has .8 inches more front legroom, 1.3 inches more front shoulder room, 2.5 inches more rear legroom and .8 inches more rear shoulder room than the AMG A-Class.

To make loading and unloading groceries and cargo easier, especially for short adults, the Stinger GT2 has a standard power liftgate, which opens and closes automatically by pressing a button or just by waiting momentarily behind the back bumper, completely leaving your hands free. The AMG A-Class doesn’t offer a power trunk.

The engine in the Stinger is mounted longitudinally (North-South), instead of sideways, as in the AMG A-Class. This makes it easier to service and maintain, because the accessory belts are in front.

To shield the driver and front passenger’s vision over a larger portion of the windshield and side windows, the Stinger has standard extendable sun visors. The AMG A-Class doesn’t offer extendable visors.

The Stinger has standard heated front seats. Heated front seats cost extra on the AMG A-Class. The Stinger GT2 also has standard heated rear seats to keep those passengers extremely comfortable in the winter. Heated rear seats aren’t available in the AMG A-Class.

To quickly and conveniently keep personal devices charged without cables tangling and wearing out, the Kia Stinger has a standard wireless phone charging system (Qi) in the center console. Wireless charging costs extra on the AMG A-Class.

The Stinger is available in both rear-wheel drive and all-wheel drive configurations. The AMG A-Class doesn’t offer a two-wheel drive configuration.

Consumer Reports® recommends the Kia Stinger, based on reliability, safety and performance.

The Kia Stinger outsold the Mercedes A-Class by 25% during the 2021 model year.