2021 Mercedes-Benz GLS vs 2022 Kia EV6
Overview | |
MSRP$76,000 | MSRP$40,900 |
Listings16 | Listings18 |
Ratings & Reviews | |
User Reviews | User Reviews |
Expert reviews8.3 out of 10 | Expert reviews7.7 out of 10 |
2021 Mercedes-Benz GLS Reviews SummaryThe “S” in the 2021 Mercedes-Benz GLS name is meant to connect the SUV to the S-Class flagship sedan. In this sense, the GLS is the S-Class of SUVs, and it delivers on that positioning. The 2021 GLS-Class has three rows of spacious seating, and puts comfort above all else. The GLS can hold groceries, weekend bags, antique desks purchased from a roadside consignment shop—all things that would require a lot of negotiating in the S-Class sedan. The GLS is one member of a growing fraternity of full-size, three-row, luxury SUVs. Their ranks include the Cadillac Escalade, Lincoln Navigator, Infiniti QX80, and the more recent BMW X7. The GLS sets itself apart with a higher standard of luxury, and impressive performance… if you’re willing to shell out the cash. | |
2022 Kia EV6 Reviews SummaryWe didn't expect them to go there. But the designers and engineers behind the 2022 Kia EV6 did—and deleted the template of their company's affordable, cost-conscious brand. This is an electric performance car that can genuinely compete with a Tesla Model 3 on everything from tech to style to acceleration to charging time. It's a masterclass of fresh thinking in a market segment dominated by rehashed ideas. And yet, it's hampered by the same major problems that, for decades, remain unresolved. The EV6 would be amazing with battery technology that hasn't yet been invented. For now, we'll tell you what the present life is like with this most unusual and exciting Kia in years. | |
No video found | |
Popular Features & Specs | |
Engine3.0L 362 hp I6 | Engine167 hp Electric |
Drive TrainAWD | Drive TrainRWD |
Seating Capacity7 | Seating Capacity5 |
Horsepower362 hp @ 5500 rpm | Horsepower |
EV Battery Capacity | EV Battery Capacity58 kWh |
MPG City20 | MPG City136 |
MPG Highway24 | MPG Highway100 |
Battery Charge Time (120V) | Battery Charge Time (120V)51 hours |
Engine | |
Engine Name3.0L 362 hp I6 | Engine Name167 hp Electric |
Torque369 lb-ft @ 1600 rpm | Torque |
Horsepower362 hp @ 5500 rpm | Horsepower |
Battery Charge Time (120V) | Battery Charge Time (120V)51 hours |
DrivetrainAWD | DrivetrainRWD |
Fuel Economy | |
EV Battery Capacity | EV Battery Capacity58 kWh |
MPG City20 | MPG City136 |
MPG Highway24 | MPG Highway100 |
Interior | |
Seating Capacity7 | Seating Capacity5 |
Key Features | |
Navigation SystemStandard | Navigation SystemStandard |
Sunroof/MoonroofStandard | Sunroof/Moonroof |
Safety | |
Front Crash Overall | Front Crash Overall5 |
Side Crash Overall | Side Crash Overall5 |
Dimensions & Capacity | |
Cargo Space17.4 cu ft | Cargo Space24.4 cu ft |
Curb Weight5467 lbs | Curb Weight4017 lbs |
Height72.4 in | Height60.8 in |
Length205.0 in | Length184.3 in |
Width84.9 in | Width74.0 in |
Wheelbase123.4 in | Wheelbase114.2 in |
Maximum Payload1808 lbs | Maximum Payload987 lbs |
Number of doors4 | Number of doors4 |
Maximum Towing Capacity7700 lbs | Maximum Towing Capacity |
Overview | ||
MSRP | $76,000 | $40,900 |
Listings | ||
Ratings & Reviews | ||
User reviews | ||
Expert reviews | 8.3 out of 10Read full review | 7.7 out of 10Read full review |
Pros & cons | ||
Summary | The “S” in the 2021 Mercedes-Benz GLS name is meant to connect the SUV to the S-Class flagship sedan. In this sense, the GLS is the S-Class of SUVs, and it delivers on that positioning. The 2021 GLS-Class has three rows of spacious seating, and puts comfort above all else. The GLS can hold groceries, weekend bags, antique desks purchased from a roadside consignment shop—all things that would require a lot of negotiating in the S-Class sedan. The GLS is one member of a growing fraternity of full-size, three-row, luxury SUVs. Their ranks include the Cadillac Escalade, Lincoln Navigator, Infiniti QX80, and the more recent BMW X7. The GLS sets itself apart with a higher standard of luxury, and impressive performance… if you’re willing to shell out the cash. | We didn't expect them to go there. But the designers and engineers behind the 2022 Kia EV6 did—and deleted the template of their company's affordable, cost-conscious brand. This is an electric performance car that can genuinely compete with a Tesla Model 3 on everything from tech to style to acceleration to charging time. It's a masterclass of fresh thinking in a market segment dominated by rehashed ideas. And yet, it's hampered by the same major problems that, for decades, remain unresolved. The EV6 would be amazing with battery technology that hasn't yet been invented. For now, we'll tell you what the present life is like with this most unusual and exciting Kia in years. |
Video | No video found | |
Popular Features & Specs | ||
Engine | 3.0L 362 hp I6 | 167 hp Electric |
Drive Train | AWD | RWD |
Seating Capacity | 7 | 5 |
Horsepower | 362 hp @ 5500 rpm | |
EV Battery Capacity | 58 kWh | |
MPG City | 20 | 136 |
MPG Highway | 24 | 100 |
Battery Charge Time (120V) | 51 hours | |
Engine | ||
Engine Name | 3.0L 362 hp I6 | 167 hp Electric |
Torque | 369 lb-ft @ 1600 rpm | |
Horsepower | 362 hp @ 5500 rpm | |
Battery Charge Time (120V) | 51 hours | |
Drivetrain | AWD | RWD |
Fuel Economy | ||
EV Battery Capacity | 58 kWh | |
MPG City | 20 | 136 |
MPG Highway | 24 | 100 |
Interior | ||
Seating Capacity | 7 | 5 |
Key Features | ||
Navigation System | Standard | Standard |
Sunroof/Moonroof | Standard | |
Safety | ||
Front Crash Overall | 5 | |
Side Crash Overall | 5 | |
Dimensions & Capacity | ||
Cargo Space | 17.4 cu ft | 24.4 cu ft |
Curb Weight | 5467 lbs | 4017 lbs |
Height | 72.4 in | 60.8 in |
Length | 205.0 in | 184.3 in |
Width | 84.9 in | 74.0 in |
Wheelbase | 123.4 in | 114.2 in |
Maximum Payload | 1808 lbs | 987 lbs |
Number of doors | 4 | 4 |
Maximum Towing Capacity | 7700 lbs | |
The 2021 Mercedes-Benz GLS, a continuation of the third generation introduced in 2020, was a luxurious SUV that offered a blend of practicality and opulence. Originally launched as the GL-Class in 2006, it was designed to replace the G-Class, but the latter's popularity ensured its survival. The GLS, with its three rows and plush interior, became a family-friendly alternative to the likes of the Navigator and Escalade. The transition from "GL" to "GLS" during its second generation marked a shift towards a more refined design. Despite its size, the GLS appeared less bulky than its predecessors, thanks to softened angles and clever design elements. Inside, it boasted a futuristic cabin dominated by a massive digital screen, emphasizing its tech-centric approach. The GLS was available in three trims: GLS 450, GLS 580, and the high-performance AMG GLS 63, each offering a range of standard and optional features to enhance comfort and convenience.
In contrast, the 2022 Kia EV6 presented a sportier and more dynamic aesthetic, reminiscent of the Ford Mustang Mach-E. Its design was characterized by a low and wide stance, with a highback tail and a lip spoiler that doubled as a lightbar. The EV6's wheels were pushed to the corners, giving it a muscular appearance akin to a Porsche 911. The headlights, with their aggressive V-shaped pattern, added to its sporty demeanor. The EV6's interior was equally striking, featuring dual 12-inch screens, a floating centre console, and seats covered in a mix of suede and leather. The ambient lighting and futuristic design elements created an engaging driving environment. The EV6 prioritized a car-first, computer-second approach, making it a joy to drive.

















The 2021 Mercedes-Benz GLS offered a range of powerful engine options. The entry-level GLS 450 was equipped with a twin-turbocharged 3.0-litre inline-six engine, producing 362 horsepower and 369 pound-feet of torque. The GLS 580 4MATIC featured a twin-turbocharged 4.0-litre V8, delivering 483 hp and 516 lb-ft. Both models utilized a nine-speed automatic transmission paired with the Mercedes 4MATIC all-wheel drive system. The AMG GLS 63, with its hand-crafted 4.0-litre twin-turbo V8 engine, generated an impressive 603 hp and 627 lb-ft of torque. This powerhouse was capable of accelerating from zero to 100 km/h in just 4.2 seconds, reaching a top speed of 280 km/h. The GLS 63's adaptive air suspension and multiple drive modes, including Comfort, Sport, and Sport+, allowed for a customizable driving experience, while its precise handling defied its size.
The 2022 Kia EV6, particularly in the GT-Line e-AWD configuration, offered a compelling performance with its dual electric motors producing 320 horsepower and 446 pound-feet of torque. The 77.4 kWh battery, positioned low in the chassis, enabled the EV6 to accelerate to 60 mph in a claimed 4.6 seconds. The upcoming GT trim promised even more power, with 576 hp and a 0-60 time of under 3.5 seconds. The EV6's Sport mode delivered instant torque, providing a thrilling driving experience. Its regenerative braking system offered over eight settings, allowing for one-pedal driving in the maximum I-Pedal setting. However, the EV6's range was affected by cold weather, with real-world efficiency falling short of Kia's estimates. Charging capabilities were impressive, with the ability to accept up to 240 kW, though real-world charging times varied based on available infrastructure.
The 2021 Mercedes-Benz GLS excelled in interior space, offering three rows of seating with ample headroom and legroom for first- and second-row occupants. The standard seven-passenger configuration could be adjusted to six with optional captain's chairs. The third row, while less spacious, was still suitable for adults. The GLS provided 355 litres of cargo space behind the third row, expanding to 1,209 litres with the third row folded, and 2,400 litres with both the second and third rows down. The driver and front passenger enjoyed numerous storage compartments, including spacious in-door bins and a combination cup holder/wireless charging pad.
The 2022 Kia EV6 reimagined several core functions, such as door handles that popped out when approached with the key, and a rotary shifter that returned to centre. The climate and stereo controls were combined in a thin touchscreen, which could be confusing while driving. The EV6 offered generous legroom and headroom, with reclining rear seats and optional heated cushions. However, its cargo space was limited, with 690 litres behind the seats and 1,322 litres when folded. The RWD models offered a small front trunk, but the AWD models sacrificed this space for an electric motor. The EV6's towing capacity was rated at 1,043 kilograms, and it featured an onboard power generator for additional utility.
The 2021 Mercedes-Benz GLS featured the MBUX infotainment system, which included a massive touch screen and a trackpad for navigation. The system supported Apple CarPlay and Android Auto, though a USB-C cable was required for connectivity. The MBUX voice-control system allowed for complex commands, enhancing convenience. The digital dash extended to the instrument panel, both controlled by touch-sensitive pads on the steering wheel, offering a customizable display.
The 2022 Kia EV6's infotainment system was user-friendly, with quick settings adjustments and connectivity options, though wireless Apple CarPlay and Android Auto required a wired connection. The instrument panel displayed live feeds of blind spots and surrounding vehicles, enhancing safety. The 360-degree cameras provided clear visuals, and the head-up display used augmented reality for navigation. The GT-Line Package 2 included a 14-speaker Meridian stereo and a remote parking assist system, adding to the EV6's impressive tech suite.
The 2021 Mercedes-Benz GLS came standard with a comprehensive suite of driver-assistance features, including Active Brake Assist, rain-sensing wipers, and automatic high beams. Additional safety tech included lane-change assist, adaptive cruise control, and blind spot monitoring. The GLS was equipped with a full array of airbags, traction control, and a tire-pressure monitoring system.
The 2022 Kia EV6, while lacking published safety ratings, offered a robust set of standard safety features, such as forward collision avoidance assist, lane keep assist, and driver attention warning. Higher trims included blind spot monitoring, rear cross-traffic alert, and 360 cameras, enhancing overall safety.
CarGurus highlights

According to CarGurus experts, the overall rating for the 2021 Mercedes-Benz GLS was 8.3 out of 10, while the 2022 Kia EV6 scored 7.7 out of 10. Based on these ratings, the 2021 Mercedes-Benz GLS is the recommended choice for those seeking a luxurious and powerful SUV with advanced features and a spacious interior.
Choose the 2021 Mercedes-Benz GLS if:
- You prioritize a luxurious and spacious interior with advanced comfort features.
- You desire a powerful performance with multiple engine options and customizable driving modes.
- You value a comprehensive suite of safety and driver-assistance technologies.
Choose the 2022 Kia EV6 if:
- You seek a sporty and dynamic design with a focus on electric performance.
- You appreciate innovative technology and user-friendly infotainment systems.
- You want an electric vehicle with impressive charging capabilities and modern safety features.
CarGurus highlights

According to CarGurus experts, the overall rating for the 2021 Mercedes-Benz GLS was 8.3 out of 10, while the 2022 Kia EV6 scored 7.7 out of 10. Based on these ratings, the 2021 Mercedes-Benz GLS is the recommended choice for those seeking a luxurious and powerful SUV with advanced features and a spacious interior.
Choose the 2021 Mercedes-Benz GLS if:
Shop Now- You prioritize a luxurious and spacious interior with advanced comfort features.
- You desire a powerful performance with multiple engine options and customizable driving modes.
- You value a comprehensive suite of safety and driver-assistance technologies.
Choose the 2022 Kia EV6 if:
Shop Now- You seek a sporty and dynamic design with a focus on electric performance.
- You appreciate innovative technology and user-friendly infotainment systems.
- You want an electric vehicle with impressive charging capabilities and modern safety features.

By: CarGurus + AI
At CarGurus, our team of experienced automotive writers remain at the heart of our content operation, conducting hands-on car tests and writing insightful guides that are backed by years of industry experience. To complement this, we are harnessing AI to make our content offering more diverse and more helpful to shoppers than ever. To achieve this, our AI systems are based exclusively on CarGurus content, ratings and data, so that what we produce is both unique to CarGurus, and uniquely helpful to car shoppers.


































