2021 Mercedes-Benz GLS vs 2021 Toyota Highlander Hybrid
Overview | |
MSRP$76,000 | MSRP$38,735 |
Listings16 | Listings26 |
Ratings & Reviews | |
User Reviews | User Reviews |
Expert reviews8.3 out of 10 | Expert reviews6.7 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. | |
2021 Toyota Highlander Hybrid Reviews SummaryThere comes a time in everyone’s life when practicality rules. Usually, it arrives shortly before or after having children. In many ways, the 2021 Toyota Highlander is purpose-built to provide that practicality—especially in hybrid form. Redesigned for the 2020 model year, the 2021 Highlander adds a sporty XSE trim level (non-hybrid V6 models only), improved headlights on lower trim levels, and an upgraded Toyota Safety Sense 2.5+ collection of safety features. These changes can only make the Highlander a more appealing choice in a highly competitive segment. | |
No video found | No video found |
Popular Features & Specs | |
Engine3.0L 362 hp I6 | Engine2.5L 243 hp I4 Hybrid |
Drive TrainAWD | Drive TrainFWD |
Seating Capacity7 | Seating Capacity8 |
Horsepower362 hp @ 5500 rpm | Horsepower |
EV Battery Capacity | EV Battery Capacity1.9 kWh |
MPG City20 | MPG City36 |
MPG Highway24 | MPG Highway35 |
Engine | |
Engine Name3.0L 362 hp I6 | Engine Name2.5L 243 hp I4 Hybrid |
Torque369 lb-ft @ 1600 rpm | Torque |
Horsepower362 hp @ 5500 rpm | Horsepower |
DrivetrainAWD | DrivetrainFWD |
Fuel Economy | |
EV Battery Capacity | EV Battery Capacity1.9 kWh |
MPG City20 | MPG City36 |
MPG Highway24 | MPG Highway35 |
Interior | |
Seating Capacity7 | Seating Capacity8 |
Key Features | |
Navigation SystemStandard | Navigation System |
Sunroof/MoonroofStandard | Sunroof/Moonroof |
Safety | |
Front Crash Overall | Front Crash Overall4 |
Side Crash Overall | Side Crash Overall5 |
Dimensions & Capacity | |
Cargo Space17.4 cu ft | Cargo Space16.0 cu ft |
Curb Weight5467 lbs | Curb Weight4330 lbs |
Height72.4 in | Height68.1 in |
Length205.0 in | Length194.9 in |
Width84.9 in | Width76.0 in |
Wheelbase123.4 in | Wheelbase112.2 in |
Maximum Payload1808 lbs | Maximum Payload1495 lbs |
Number of doors4 | Number of doors4 |
Maximum Towing Capacity7700 lbs | Maximum Towing Capacity3500 lbs |
Overview | ||
MSRP | $76,000 | $38,735 |
Listings | ||
Ratings & Reviews | ||
User reviews | ||
Expert reviews | 8.3 out of 10Read full review | 6.7 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. | There comes a time in everyone’s life when practicality rules. Usually, it arrives shortly before or after having children. In many ways, the 2021 Toyota Highlander is purpose-built to provide that practicality—especially in hybrid form. Redesigned for the 2020 model year, the 2021 Highlander adds a sporty XSE trim level (non-hybrid V6 models only), improved headlights on lower trim levels, and an upgraded Toyota Safety Sense 2.5+ collection of safety features. These changes can only make the Highlander a more appealing choice in a highly competitive segment. |
Video | No video found | No video found |
Popular Features & Specs | ||
Engine | 3.0L 362 hp I6 | 2.5L 243 hp I4 Hybrid |
Drive Train | AWD | FWD |
Seating Capacity | 7 | 8 |
Horsepower | 362 hp @ 5500 rpm | |
EV Battery Capacity | 1.9 kWh | |
MPG City | 20 | 36 |
MPG Highway | 24 | 35 |
Engine | ||
Engine Name | 3.0L 362 hp I6 | 2.5L 243 hp I4 Hybrid |
Torque | 369 lb-ft @ 1600 rpm | |
Horsepower | 362 hp @ 5500 rpm | |
Drivetrain | AWD | FWD |
Fuel Economy | ||
EV Battery Capacity | 1.9 kWh | |
MPG City | 20 | 36 |
MPG Highway | 24 | 35 |
Interior | ||
Seating Capacity | 7 | 8 |
Key Features | ||
Navigation System | Standard | |
Sunroof/Moonroof | Standard | |
Safety | ||
Front Crash Overall | 4 | |
Side Crash Overall | 5 | |
Dimensions & Capacity | ||
Cargo Space | 17.4 cu ft | 16.0 cu ft |
Curb Weight | 5467 lbs | 4330 lbs |
Height | 72.4 in | 68.1 in |
Length | 205.0 in | 194.9 in |
Width | 84.9 in | 76.0 in |
Wheelbase | 123.4 in | 112.2 in |
Maximum Payload | 1808 lbs | 1495 lbs |
Number of doors | 4 | 4 |
Maximum Towing Capacity | 7700 lbs | 3500 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 intended to replace the G-Class, but the latter's popularity kept it in production. The GLS, with its three rows and plush interior, became a family-friendly alternative to the likes of the Navigator and Escalade. The 2021 model featured softened angles and lines, giving it a more refined appearance. Inside, the GLS boasted a futuristic cabin with a massive digital screen dominating the dashboard, emphasizing its tech-centric design. Available in three trims—GLS 450, GLS 580, and the high-performance AMG GLS 63—the GLS offered a range of standard features, including remote keyless entry, nine USB ports, and a 13-speaker Burmester sound system. Various option packages allowed for further customization, enhancing comfort and style.
In contrast, the 2021 Toyota Highlander Hybrid presented a bold design with its blunt nose and floating roof effect, thanks to black windshield pillars. Despite its polarizing appearance, the Highlander Hybrid was designed to stand out on the road. Offered in LE, XLE, Limited, and Platinum trims, the Highlander Hybrid catered to a range of preferences. Our test model, the Platinum trim, came equipped with electronic all-wheel drive, a 12.3-inch touchscreen, and a surround-view camera system. While the interior featured upscale touches like leather upholstery and a heated steering wheel, some elements, such as the instrument-panel shroud, felt less refined. The Highlander Hybrid's cabin offered a two-tone look with soft leather, but the dashboard's asymmetrical design and reflective screen could be distracting. Despite these quirks, the Highlander Hybrid aimed to deliver a distinctive and efficient driving experience.















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 more robust twin-turbocharged 4.0-litre V8, delivering 483 hp and 516 lb-ft. Both models utilized a nine-speed automatic transmission paired with Mercedes' 4MATIC all-wheel drive system. The AMG GLS 63, our test model, boasted a hand-crafted 4.0-litre twin-turbo V8 engine, generating an impressive 603 hp and 627 lb-ft of torque. This powerhouse enabled the GLS 63 to accelerate from zero to 100 km/h in just 4.2 seconds, with a top speed of 280 km/h. The GLS'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 2021 Toyota Highlander Hybrid, on the other hand, prioritized fuel efficiency over performance. The hybrid system combined a 2.5-litre four-cylinder engine with electric motors, producing a total output of 243 hp. This setup was paired with an "E-CVT" that mimicked an automatic transmission. The Highlander Hybrid achieved a combined fuel consumption rating of 6.7 L/100 km, a notable improvement over its predecessor. However, this efficiency came at the cost of driving enjoyment. The Highlander Hybrid's power was adequate for everyday driving, but the engine sounded strained during hard acceleration or hill climbs. The steering lacked feedback, and the ride quality suffered from excessive body movement. While the Highlander Hybrid excelled in fuel economy, it fell short in delivering a dynamic driving experience.
The 2021 Mercedes-Benz GLS excelled in providing spacious and comfortable accommodations for its occupants. With three rows of seating, the GLS offered ample headroom and legroom for first- and second-row passengers. The standard seven-passenger configuration could be adjusted to six with optional second-row captain's chairs. The third row, while not as spacious, was still suitable for adults. The GLS boasted 355 litres of cargo space behind the third row, expanding to 1,209 litres with the third row folded, and a total of 2,400 litres with both the second and third rows down. The interior featured numerous storage compartments, including spacious in-door bins and a centre console with butterfly doors.
In comparison, the 2021 Toyota Highlander Hybrid Platinum provided roomy and supportive seating for the driver and front passenger, with 10-way power adjustment for the driver. The test vehicle featured a no-cost bench seat option, increasing seating capacity to eight. However, the Highlander's narrow design made it challenging to accommodate three adults in the second row comfortably. The third-row seat was less accommodating, with limited legroom and headroom. Cargo space measured 453 litres behind the third row, expanding to 1,370 litres with it folded, and a maximum of 2,387 litres. While storage was plentiful, some design choices, such as the placement of the wireless charger, hindered accessibility.
The 2021 Mercedes-Benz GLS was equipped with the advanced MBUX infotainment system, featuring 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. MBUX's voice-control system allowed for complex commands, enhancing user convenience. The digital dash extended to the fully digital instrument panel, both controlled by touch-sensitive pads on the steering wheel. While there was a learning curve, the system offered a wealth of features and customization options.
The 2021 Toyota Highlander Hybrid came standard with Bluetooth, Apple CarPlay, Android Auto, and SiriusXM satellite radio. The Platinum trim featured a 12.3-inch touchscreen display, an 11-speaker JBL audio system, and a navigation system. The infotainment system was user-friendly, with large knobs and shortcut buttons for easy access. The Highlander's voice recognition system worked well, though it did not control climate settings. Additional features included Driver Easy Speak, projecting the driver's voice to rear passengers, and a video rearview mirror for improved visibility.
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, blind spot monitoring, and rear cross-traffic alert. The GLS also featured a full array of airbags, traction control, and a tire-pressure monitoring system.
The 2021 Toyota Highlander Hybrid was equipped with Toyota Safety Sense 2.5+, offering features like automatic high beams, dynamic radar cruise control, and automatic emergency braking with pedestrian detection. New for 2021 were intersection support and emergency steering assistance. The Highlander received a "Top Safety Pick+" rating from the IIHS and a five-star overall rating from the NHTSA. While the adaptive cruise control and lane-centring assistance had some quirks, the safety systems were generally effective.
CarGurus highlights

According to CarGurus experts, the overall rating for the 2021 Mercedes-Benz GLS was 8.3 out of 10, while the 2021 Toyota Highlander Hybrid scored 6.7 out of 10. Based on these ratings, the Mercedes-Benz GLS emerged as the superior choice, offering a blend of luxury, performance, and advanced technology that outshone the Highlander Hybrid's focus on efficiency and practicality. For those seeking a premium SUV experience, the GLS was the recommended option.
Choose the 2021 Mercedes-Benz GLS if:
- You prioritize luxury and advanced technology in your SUV.
- You desire a powerful engine lineup with impressive performance capabilities.
- You need ample interior space and cargo capacity for family and travel.
Choose the 2021 Toyota Highlander Hybrid if:
- You value fuel efficiency and eco-friendly driving in a midsize SUV.
- You seek a vehicle with a comprehensive suite of standard safety features.
- You prefer a user-friendly infotainment system with modern connectivity options.
CarGurus highlights

According to CarGurus experts, the overall rating for the 2021 Mercedes-Benz GLS was 8.3 out of 10, while the 2021 Toyota Highlander Hybrid scored 6.7 out of 10. Based on these ratings, the Mercedes-Benz GLS emerged as the superior choice, offering a blend of luxury, performance, and advanced technology that outshone the Highlander Hybrid's focus on efficiency and practicality. For those seeking a premium SUV experience, the GLS was the recommended option.
Choose the 2021 Mercedes-Benz GLS if:
Shop Now- You prioritize luxury and advanced technology in your SUV.
- You desire a powerful engine lineup with impressive performance capabilities.
- You need ample interior space and cargo capacity for family and travel.
Choose the 2021 Toyota Highlander Hybrid if:
Shop Now- You value fuel efficiency and eco-friendly driving in a midsize SUV.
- You seek a vehicle with a comprehensive suite of standard safety features.
- You prefer a user-friendly infotainment system with modern connectivity options.

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.







































