2021 Mercedes-Benz GLS vs 2022 Buick Enclave
Overview | |
MSRP$76,000 | MSRP$42,800 |
Listings16 | Listings21 |
Ratings & Reviews | |
User Reviews | User Reviews |
Expert reviews8.3 out of 10 | Expert reviews7.0 out of 10 |
Pros
Cons
| |
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 Buick Enclave Reviews SummaryBuick's three-row SUV gets a welcome freshening for the 2022 model year. Updates include new front and rear styling, new wheel designs, and exterior lighting enhancements. Inside, there's a new steering wheel, a restyled centre console with new shifter buttons, and revised seat trim. Wireless Apple CarPlay and Android Auto debut, and a new wireless phone charger is now available. But perhaps most importantly, the 2022 Enclave receives desperately needed standard driver-assistance and safety technology. | |
No video found | No video found |
Popular Features & Specs | |
Engine3.0L 362 hp I6 | Engine3.6L 310 hp V6 |
Drive TrainAWD | Drive TrainFWD |
Seating Capacity7 | Seating Capacity7 |
Horsepower362 hp @ 5500 rpm | Horsepower310 hp @ 6800 rpm |
MPG City20 | MPG City18 |
MPG Highway24 | MPG Highway26 |
Engine | |
Engine Name3.0L 362 hp I6 | Engine Name3.6L 310 hp V6 |
Torque369 lb-ft @ 1600 rpm | Torque266 lb-ft @ 2800 rpm |
Horsepower362 hp @ 5500 rpm | Horsepower310 hp @ 6800 rpm |
DrivetrainAWD | DrivetrainFWD |
Fuel Economy | |
MPG City20 | MPG City18 |
MPG Highway24 | MPG Highway26 |
Interior | |
Seating Capacity7 | Seating Capacity7 |
Key Features | |
Navigation SystemStandard | Navigation System |
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 Space23.6 cu ft |
Curb Weight5467 lbs | Curb Weight4359 lbs |
Height72.4 in | Height69.9 in |
Length205.0 in | Length204.7 in |
Width84.9 in | Width89.3 in |
Wheelbase123.4 in | Wheelbase120.9 in |
Maximum Payload1808 lbs | Maximum Payload |
Number of doors4 | Number of doors4 |
Maximum Towing Capacity7700 lbs | Maximum Towing Capacity5000 lbs |
Overview | ||
MSRP | $76,000 | $42,800 |
Listings | ||
Ratings & Reviews | ||
User reviews | ||
Expert reviews | 8.3 out of 10Read full review | 7.0 out of 10Read full review |
Pros & cons | 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. | Buick's three-row SUV gets a welcome freshening for the 2022 model year. Updates include new front and rear styling, new wheel designs, and exterior lighting enhancements. Inside, there's a new steering wheel, a restyled centre console with new shifter buttons, and revised seat trim. Wireless Apple CarPlay and Android Auto debut, and a new wireless phone charger is now available. But perhaps most importantly, the 2022 Enclave receives desperately needed standard driver-assistance and safety technology. |
Video | No video found | No video found |
Popular Features & Specs | ||
Engine | 3.0L 362 hp I6 | 3.6L 310 hp V6 |
Drive Train | AWD | FWD |
Seating Capacity | 7 | 7 |
Horsepower | 362 hp @ 5500 rpm | 310 hp @ 6800 rpm |
MPG City | 20 | 18 |
MPG Highway | 24 | 26 |
Engine | ||
Engine Name | 3.0L 362 hp I6 | 3.6L 310 hp V6 |
Torque | 369 lb-ft @ 1600 rpm | 266 lb-ft @ 2800 rpm |
Horsepower | 362 hp @ 5500 rpm | 310 hp @ 6800 rpm |
Drivetrain | AWD | FWD |
Fuel Economy | ||
MPG City | 20 | 18 |
MPG Highway | 24 | 26 |
Interior | ||
Seating Capacity | 7 | 7 |
Key Features | ||
Navigation System | Standard | |
Sunroof/Moonroof | Standard | |
Safety | ||
Front Crash Overall | 5 | |
Side Crash Overall | 5 | |
Dimensions & Capacity | ||
Cargo Space | 17.4 cu ft | 23.6 cu ft |
Curb Weight | 5467 lbs | 4359 lbs |
Height | 72.4 in | 69.9 in |
Length | 205.0 in | 204.7 in |
Width | 84.9 in | 89.3 in |
Wheelbase | 123.4 in | 120.9 in |
Maximum Payload | 1808 lbs | |
Number of doors | 4 | 4 |
Maximum Towing Capacity | 7700 lbs | 5000 lbs |
The 2021 Mercedes-Benz GLS, a continuation of the third generation introduced in 2020, was a luxurious SUV that managed to blend size with sophistication. Originally launched as the GL-Class in 2006, it was designed to replace the G-Class, but the latter's popularity kept it in the lineup. 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 large 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 luxurious features and optional packages to enhance comfort and style.
The 2022 Buick Enclave, on the other hand, represented a significant shift for Buick, which had traditionally favoured conservative styling. Over the past 15 years, Buick had transformed its lineup from sedans to SUVs, reflecting broader market trends. The Enclave, introduced in 2008, revitalized the brand with its spacious three-row design. By 2022, it had undergone a mid-cycle refresh, featuring updated exterior styling and a more upscale interior. The top-tier Avenir trim offered unique design elements and premium features, including climate-controlled front seats and heated second-row captain's chairs. The Enclave's interior was spacious, with ample room for passengers in all three rows, and the restyled centre console added a modern touch. The Enclave Avenir, with its optional Technology package, provided a comfortable and serene ride, thanks to advanced suspension and noise-cancellation technologies.















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 and 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 could accelerate from zero to 100 km/h in just 4.2 seconds, reaching a top speed of 280 km/h. The GLS's adaptive air suspension and multiple drive modes allowed for a smooth and agile driving experience, defying its size and weight.
In contrast, the 2022 Buick Enclave kept things simple with a single powertrain option: a 3.6-litre V6 engine paired with a nine-speed automatic transmission. This setup produced 310 horsepower and 266 pound-feet of torque, providing adequate performance for the Enclave's size. The Enclave's all-wheel drive system was standard in Canada, and it offered a towing capacity of 2,268 kilograms. The Enclave excelled in delivering a quiet and comfortable ride, thanks to its premium ride suspension and real-time chassis damping. Buick's QuietTuning and active noise cancellation technologies further enhanced the serene cabin environment. Despite its size, the Enclave's powertrain was surprisingly responsive, offering good acceleration and a pleasant engine note.
The 2021 Mercedes-Benz GLS provided a spacious interior with three rows of seating. The first and second rows offered ample headroom and legroom, while the third row was suitable for full-size adults, a rarity among three-row SUVs. The GLS's cargo space was generous, with 355 litres behind the third row, expanding to 1,209 litres with the third row folded, and a total of 2,400 litres with both rows down. The power-folding third row and numerous storage compartments added to its practicality.
The 2022 Buick Enclave also excelled in interior space, offering comfortable seating for six adults across its three rows. The second-row captain's chairs facilitated easy access to the third row, which provided sufficient room for taller passengers. The Enclave's cargo capacity was impressive, with 668 litres behind the third row, 1,634 litres with the third row folded, and a maximum of 2,758 litres with both rows down. The restyled centre console and push-button transmission added a modern touch, though the potential for spills on the electronic shifter was a concern.
The 2021 Mercedes-Benz GLS featured the MBUX infotainment system, characterized by a massive touch screen and a trackpad controller. It supported Apple CarPlay and Android Auto, though a USB-C cable was required for connectivity. The MBUX system included a voice-control feature, activated by saying "Hey Mercedes," allowing for complex commands. The digital dash extended to the instrument panel, offering customizable displays controlled via touch-sensitive pads on the steering wheel.
The 2022 Buick Enclave came with an 8-inch touchscreen infotainment system, offering wireless Apple CarPlay and Android Auto, as well as wireless phone charging. The Premium and Avenir trims added navigation and a 10-speaker Bose audio system. The Enclave's infotainment system supported pairing up to 10 devices, with a built-in Wi-Fi hotspot. Standard safety features included a following-distance indicator, HD rear vision camera, and Teen Driver technology. The Avenir trim offered additional features like adaptive cruise control and a head-up display.
The 2021 Mercedes-Benz GLS came equipped with a comprehensive suite of driver-assistance features, including Active Brake Assist, rain-sensing wipers, and automatic high beams. Additional safety options included lane-change assist, adaptive cruise control, and blind spot monitoring. The GLS also featured a full array of airbags, traction control, and a tire-pressure monitoring system.
For 2022, Buick made significant updates to the Enclave's safety tech, standardizing the Buick Driver Confidence Plus package across all trims. This included automatic emergency braking, forward-collision warning, lane-change alert, and more. The Premium trim added enhanced automatic emergency braking and a surround-view camera. The Enclave received a five-star overall safety rating from the NHTSA and "Good" ratings from the IIHS, except for an "Acceptable" score in the updated side-impact test.
CarGurus highlights

According to CarGurus experts, the overall rating for the 2021 Mercedes-Benz GLS is 8.3 out of 10, while the 2022 Buick Enclave scores 7.0 out of 10. Based on these ratings, the 2021 Mercedes-Benz GLS is the recommended choice for those seeking a luxurious, high-performance SUV with advanced technology and safety features.
Choose the 2021 Mercedes-Benz GLS if:
- You prioritize a high-performance engine lineup with impressive acceleration and top speed.
- You value advanced technology features, including the MBUX infotainment system and customizable digital displays.
- You seek a luxurious and spacious interior with ample cargo capacity and seating for full-size adults in all three rows.
Choose the 2022 Buick Enclave if:
- You prefer a comfortable and quiet ride with advanced noise-cancellation technology.
- You need a spacious interior with easy access to the third row and generous cargo capacity.
- You appreciate a comprehensive suite of standard safety features and a high safety rating.
CarGurus highlights

According to CarGurus experts, the overall rating for the 2021 Mercedes-Benz GLS is 8.3 out of 10, while the 2022 Buick Enclave scores 7.0 out of 10. Based on these ratings, the 2021 Mercedes-Benz GLS is the recommended choice for those seeking a luxurious, high-performance SUV with advanced technology and safety features.
Choose the 2021 Mercedes-Benz GLS if:
Shop Now- You prioritize a high-performance engine lineup with impressive acceleration and top speed.
- You value advanced technology features, including the MBUX infotainment system and customizable digital displays.
- You seek a luxurious and spacious interior with ample cargo capacity and seating for full-size adults in all three rows.
Choose the 2022 Buick Enclave if:
Shop Now- You prefer a comfortable and quiet ride with advanced noise-cancellation technology.
- You need a spacious interior with easy access to the third row and generous cargo capacity.
- You appreciate a comprehensive suite of standard safety features and a high safety rating.

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.


































