2021 Mercedes-Benz GLS vs 2021 Land Rover Defender
Overview | |
MSRP$76,000 | MSRP$46,100 |
Listings268 | Listings137 |
Ratings & Reviews | |
User Reviews | User Reviews |
Expert reviews8.3 out of 10 | Expert reviews8.0 out of 10 |
Pros
Cons
| Pros
Cons
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2021 Mercedes-Benz GLS Reviews SummaryThe “S” in the 2021 Mercedes-Benz GLS-Class 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-Class 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. | |
2021 Land Rover Defender Reviews SummaryThe 2021 Land Rover Defender is a midsize SUV with four-wheel drive (4WD), available in short-wheelbase three-door (Defender 90) and long-wheelbase five-door (Defender 110) forms. After a long absence, the Defender returned to the United States for the 2020 model year, transformed into a thoroughly modern, 21st-century SUV. While it was gone, its original Land Rover Series I, II, III, 90, 110, and Defender ancestors became treasured classics. The new Defender carries its legacy forward, with the quest to bring new followers to its path. | |
No video found | No video found |
Popular Features & Specs | |
Engine3.0L 362 hp I6 | Engine2.0L 296 hp I4 |
Drive TrainAWD | Drive TrainAWD |
Seating Capacity7 | Seating Capacity6 |
Horsepower362 hp @ 5500 rpm | Horsepower296 hp @ 4000 rpm |
MPG City20 | MPG City18 |
MPG Highway24 | MPG Highway21 |
Engine | |
Engine Name3.0L 362 hp I6 | Engine Name2.0L 296 hp I4 |
Torque369 lb-ft @ 1600 rpm | Torque295 lb-ft @ 1500 rpm |
Horsepower362 hp @ 5500 rpm | Horsepower296 hp @ 4000 rpm |
DrivetrainAWD | DrivetrainAWD |
Fuel Economy | |
MPG City20 | MPG City18 |
MPG Highway24 | MPG Highway21 |
Interior | |
Seating Capacity7 | Seating Capacity6 |
Key Features | |
Navigation SystemStandard | Navigation SystemStandard |
Sunroof/MoonroofStandard | Sunroof/Moonroof |
Dimensions & Capacity | |
Cargo Space17.4 cu ft | Cargo Space15.6 cu ft |
Curb Weight5467 lbs | Curb Weight4550 lbs |
Height72.4 in | Height77.7 in |
Length205.0 in | Length180.4 in |
Width84.9 in | Width82.9 in |
Wheelbase123.4 in | Wheelbase101.9 in |
Maximum Payload1808 lbs | Maximum Payload |
Number of doors4 | Number of doors2 |
Maximum Towing Capacity7700 lbs | Maximum Towing Capacity7716 lbs |
Overview | ||
MSRP | $76,000 | $46,100 |
Listings | ||
Ratings & Reviews | ||
User reviews | ||
Expert reviews | 8.3 out of 10Read full review | 8.0 out of 10Read full review |
Pros & cons | Pros
Cons
| Pros
Cons
|
Summary | The “S” in the 2021 Mercedes-Benz GLS-Class 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-Class 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. | The 2021 Land Rover Defender is a midsize SUV with four-wheel drive (4WD), available in short-wheelbase three-door (Defender 90) and long-wheelbase five-door (Defender 110) forms. After a long absence, the Defender returned to the United States for the 2020 model year, transformed into a thoroughly modern, 21st-century SUV. While it was gone, its original Land Rover Series I, II, III, 90, 110, and Defender ancestors became treasured classics. The new Defender carries its legacy forward, with the quest to bring new followers to its path. |
Video | No video found | No video found |
Popular Features & Specs | ||
Engine | 3.0L 362 hp I6 | 2.0L 296 hp I4 |
Drive Train | AWD | AWD |
Seating Capacity | 7 | 6 |
Horsepower | 362 hp @ 5500 rpm | 296 hp @ 4000 rpm |
MPG City | 20 | 18 |
MPG Highway | 24 | 21 |
Engine | ||
Engine Name | 3.0L 362 hp I6 | 2.0L 296 hp I4 |
Torque | 369 lb-ft @ 1600 rpm | 295 lb-ft @ 1500 rpm |
Horsepower | 362 hp @ 5500 rpm | 296 hp @ 4000 rpm |
Drivetrain | AWD | AWD |
Fuel Economy | ||
MPG City | 20 | 18 |
MPG Highway | 24 | 21 |
Interior | ||
Seating Capacity | 7 | 6 |
Key Features | ||
Navigation System | Standard | Standard |
Sunroof/Moonroof | Standard | |
Dimensions & Capacity | ||
Cargo Space | 17.4 cu ft | 15.6 cu ft |
Curb Weight | 5467 lbs | 4550 lbs |
Height | 72.4 in | 77.7 in |
Length | 205.0 in | 180.4 in |
Width | 84.9 in | 82.9 in |
Wheelbase | 123.4 in | 101.9 in |
Maximum Payload | 1808 lbs | |
Number of doors | 4 | 2 |
Maximum Towing Capacity | 7700 lbs | 7716 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 appealed to affluent families with its three rows of seating and a comfortable interior, serving as a sophisticated alternative to the Navigator and Escalade. The exterior design of the GLS was more refined than its predecessors, with softened angles and lines that gave it a sleeker appearance. Inside, the GLS boasted a futuristic cabin dominated by a massive digital screen that spanned much of the dashboard, highlighting its tech-centric nature. 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 options.
The 2021 Land Rover Defender, on the other hand, was a modern reinterpretation of a classic icon. The original Defender, with its distinctive boxy design and rugged character, had been a staple since 1948. The new Defender retained some of the classic design cues, such as the flat-topped fenders and floating roof, while incorporating modern elements like half-round LED headlights. The interior of the Defender emphasized an exposed structure theme, with a dash that appeared to be held between horizontal beams and controls that were robust and tactile. The cabin was designed to be both luxurious and durable, with high-quality materials throughout. The Defender's design was both functional and stylish, making it a standout in both urban and off-road environments.
















The 2021 Mercedes-Benz GLS offered a range of powerful engines, starting with the GLS 450's twin-turbocharged 3.0-liter inline-six engine, producing 362 horsepower and 369 pound-feet of torque. The GLS 580 stepped up with a twin-turbocharged 4.0-liter V8, delivering 483 hp and 516 lb-ft. Both models featured a nine-speed automatic transmission and Mercedes' 4MATIC all-wheel-drive system. The AMG GLS 63, with its hand-crafted 4.0-liter twin-turbo V8, generated an impressive 603 hp and 627 lb-ft of torque, allowing it to accelerate from 0 to 60 mph in just 4.1 seconds. The GLS 63 also featured an adaptive air suspension system, providing a smooth ride and precise handling. Multiple drive modes allowed drivers to customize the vehicle's performance to their liking, making the GLS a versatile and dynamic SUV.
The 2021 Land Rover Defender was equipped with two powertrains in the U.S. The base model featured a turbocharged 2.0-liter inline-four engine, producing 296 horsepower and 295 pound-feet of torque. The more powerful option was a turbocharged 3.0-liter inline-six mild-hybrid setup, offering 395 hp and 406 lb-ft. Both engines were paired with an eight-speed automatic transmission and full-time 4WD with low range and Terrain Response. The Defender's off-road capabilities were impressive, with features like a 30.1-degree approach angle, 37.6-degree departure angle, and a maximum wading depth of 35.4 inches. On-road, the Defender was quick and comfortable, with the 3.0-liter model reaching 0-60 mph in 5.8 seconds. The Defender also boasted a towing capacity of 8,200 pounds, making it a versatile choice for both adventure and everyday use.
The 2021 Mercedes-Benz GLS offered a spacious interior with three rows of seating, providing ample headroom and legroom for first- and second-row passengers. The standard seven-passenger seating could be reduced to six with optional second-row captain's chairs. The third row, while not as roomy, was still suitable for adults. The GLS provided 17.4 cubic feet of cargo space behind the third row, expanding to 42.7 cubic feet with the third row folded, and 87.4 cubic feet with both the second and third rows down. The interior featured numerous storage compartments, including spacious in-door bins and a center console with butterfly doors.
The 2021 Land Rover Defender, built on a unibody platform, offered a flexible interior configuration. The Defender 110 model provided the option of a jump seat between the front seats and a third-row seat for two in the long-wheelbase version. The second row was spacious, and the Defender 110 offered 34.6 cubic feet of cargo space behind the second row, expanding to 78.8 cubic feet with the second row folded. The independent suspension system contributed to a comfortable ride and allowed for a versatile interior layout.
The 2021 Mercedes-Benz GLS featured the MBUX infotainment system, which included a large touchscreen and a trackpad for easy navigation. The system supported Apple CarPlay and Android Auto, though a USB-C cable was required for connectivity. The MBUX system also offered voice control, allowing users to activate it with phrases like "Hey Mercedes." The digital dash extended to the instrument panel, both controlled by touch-sensitive pads on the steering wheel, providing a customizable and tech-savvy driving experience.
The 2021 Land Rover Defender introduced the Pivi Pro infotainment system, featuring a 10-inch touchscreen and a 12.3-inch digital instrument panel. Standard features included Bluetooth, Apple CarPlay, and Android Auto, with multiple USB and 12-volt outlets throughout the cabin. The Defender also offered a 3D surround-camera system with a "transparent hood" view, useful for off-roading. The audio system could be upgraded to a Meridian sound system, and a ClearSight rear-view mirror provided a camera view for improved visibility.
The 2021 Mercedes-Benz GLS came equipped with a comprehensive suite of driver-assistance features, including Active Brake Assist, forward-collision avoidance, blind-spot monitoring, and automatic high beams. Additional safety options included lane-keep assist, adaptive cruise control, and a following-distance indicator. The GLS also featured a full array of airbags, traction control, and a tire-pressure monitoring system.
The 2021 Land Rover Defender, while not yet rated by NHTSA or IIHS, offered a robust set of standard safety features. These included a perimeter alarm, front airbags with a passenger seat occupant monitor, electronic traction control, dynamic stability control, and emergency braking. The Defender also featured blind spot assist, lane-keep assist, and a 360-degree parking aid, ensuring a safe driving experience both on and off the road.
CarGurus highlights

According to CarGurus experts, the overall rating for the 2021 Mercedes-Benz GLS is 8.3 out of 10, while the 2021 Land Rover Defender scores 8.0 out of 10. Based on these ratings, the Mercedes-Benz GLS is recommended for those seeking a luxurious and versatile SUV with advanced technology and a spacious interior.
Choose the 2021 Mercedes-Benz GLS if:
- You prioritize a luxurious and tech-savvy interior with advanced infotainment features.
- You need a spacious three-row SUV with ample cargo space for family trips.
- You desire a powerful and smooth ride with multiple drive modes for a customizable driving experience.
Choose the 2021 Land Rover Defender if:
- You seek a rugged and capable SUV with impressive off-road capabilities.
- You appreciate a blend of classic design elements with modern technology.
- You require a versatile vehicle with flexible seating and cargo configurations for various adventures.
CarGurus highlights

According to CarGurus experts, the overall rating for the 2021 Mercedes-Benz GLS is 8.3 out of 10, while the 2021 Land Rover Defender scores 8.0 out of 10. Based on these ratings, the Mercedes-Benz GLS is recommended for those seeking a luxurious and versatile SUV with advanced technology and a spacious interior.
Choose the 2021 Mercedes-Benz GLS if:
Shop Now- You prioritize a luxurious and tech-savvy interior with advanced infotainment features.
- You need a spacious three-row SUV with ample cargo space for family trips.
- You desire a powerful and smooth ride with multiple drive modes for a customizable driving experience.
Choose the 2021 Land Rover Defender if:
Shop Now- You seek a rugged and capable SUV with impressive off-road capabilities.
- You appreciate a blend of classic design elements with modern technology.
- You require a versatile vehicle with flexible seating and cargo configurations for various adventures.

By: CarGurus + AI
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