2021 Mercedes-Benz GLB vs 2021 Lexus GX
Overview | |
MSRP$38,050 | MSRP$53,450 |
Listings31 | Listings3 |
Ratings & Reviews | |
User Reviews | User Reviews |
Expert reviews8.0 out of 10 | Expert reviews5.3 out of 10 |
2021 Mercedes-Benz GLB Reviews SummaryWith an approachable starting price and a flexible interior layout, the compact 2021 Mercedes-Benz GLB makes its mark by offering an optional third row of seating, bringing its passenger capacity from five to seven. Add that to an already capable and attractive crossover SUV, and you’ve got a reason to join the Mercedes-Benz family with your family. | |
2021 Lexus GX Reviews Summaryost modern SUVs are really car-based crossovers—lifted station wagons, or minivans without the sliding doors. That’s not the case with the 2021 Lexus GX 460. Like the mythical Loch Ness Monster, the GX is a creature that time forgot. It’s one of the last SUVs with truck-like body-on-frame construction and true off-road capability. That’s because the GX is actually a rebadged Toyota Land Cruiser Prado (a smaller version of the iconic Toyota Land Cruiser not sold in North America), and is related to the Toyota 4Runner. It’s also genuinely old: the current generation dates back to the 2010 model year, and Lexus has kept it in production with some updates of styling and tech over the years. That makes the GX a fairly odd proposition on the new-car market. It has the off-road capability, not as a lifestyle statement, but because that’s what was still expected of SUVs when it was launched. The GX sits between the RX and LX in the Lexus lineup but has little direct competition. Its only real rival is the much newer Land Rover Discovery. For the 2021 model year, the GX gets some minor updates. Lexus continues to offer only the GX 460 model, with a single powertrain option, a standard four-wheel drive (4WD) drivetrain, and two pricing levels: base, or the Executive package. | |
No video found | |
Popular Features & Specs | |
Engine2.0L 221 hp I4 | Engine4.6L 301 hp V8 |
Drive TrainFWD | Drive TrainAWD |
Seating Capacity7 | Seating Capacity7 |
Horsepower221 hp @ 5500 rpm | Horsepower301 hp @ 5500 rpm |
MPG City23 | MPG City15 |
MPG Highway31 | MPG Highway19 |
Engine | |
Engine Name2.0L 221 hp I4 | Engine Name4.6L 301 hp V8 |
Torque258 lb-ft @ 1800 rpm | Torque329 lb-ft @ 3500 rpm |
Horsepower221 hp @ 5500 rpm | Horsepower301 hp @ 5500 rpm |
DrivetrainFWD | DrivetrainAWD |
Fuel Economy | |
MPG City23 | MPG City15 |
MPG Highway31 | MPG Highway19 |
Interior | |
Seating Capacity7 | Seating Capacity7 |
Key Features | |
Sunroof/Moonroof | Sunroof/MoonroofOptional |
Safety | |
Front Crash Overall4 | Front Crash Overall |
Side Crash Overall5 | Side Crash Overall |
Dimensions & Capacity | |
Cargo Space12.4 cu ft | Cargo Space11.6 cu ft |
Curb Weight3638 lbs | Curb Weight5130 lbs |
Height66.7 in | Height74.2 in |
Length182.4 in | Length192.1 in |
Width79.5 in | Width74.2 in |
Wheelbase111.4 in | Wheelbase109.8 in |
Maximum Payload | Maximum Payload1315 lbs |
Number of doors4 | Number of doors4 |
Maximum Towing Capacity | Maximum Towing Capacity6500 lbs |
Overview | ||
MSRP | $38,050 | $53,450 |
Listings | ||
Ratings & Reviews | ||
User reviews | ||
Expert reviews | 8.0 out of 10Read full review | 5.3 out of 10Read full review |
Pros & cons | ||
Summary | With an approachable starting price and a flexible interior layout, the compact 2021 Mercedes-Benz GLB makes its mark by offering an optional third row of seating, bringing its passenger capacity from five to seven. Add that to an already capable and attractive crossover SUV, and you’ve got a reason to join the Mercedes-Benz family with your family. | ost modern SUVs are really car-based crossovers—lifted station wagons, or minivans without the sliding doors. That’s not the case with the 2021 Lexus GX 460. Like the mythical Loch Ness Monster, the GX is a creature that time forgot. It’s one of the last SUVs with truck-like body-on-frame construction and true off-road capability. That’s because the GX is actually a rebadged Toyota Land Cruiser Prado (a smaller version of the iconic Toyota Land Cruiser not sold in North America), and is related to the Toyota 4Runner. It’s also genuinely old: the current generation dates back to the 2010 model year, and Lexus has kept it in production with some updates of styling and tech over the years. That makes the GX a fairly odd proposition on the new-car market. It has the off-road capability, not as a lifestyle statement, but because that’s what was still expected of SUVs when it was launched. The GX sits between the RX and LX in the Lexus lineup but has little direct competition. Its only real rival is the much newer Land Rover Discovery. For the 2021 model year, the GX gets some minor updates. Lexus continues to offer only the GX 460 model, with a single powertrain option, a standard four-wheel drive (4WD) drivetrain, and two pricing levels: base, or the Executive package. |
Video | No video found | |
Popular Features & Specs | ||
Engine | 2.0L 221 hp I4 | 4.6L 301 hp V8 |
Drive Train | FWD | AWD |
Seating Capacity | 7 | 7 |
Horsepower | 221 hp @ 5500 rpm | 301 hp @ 5500 rpm |
MPG City | 23 | 15 |
MPG Highway | 31 | 19 |
Engine | ||
Engine Name | 2.0L 221 hp I4 | 4.6L 301 hp V8 |
Torque | 258 lb-ft @ 1800 rpm | 329 lb-ft @ 3500 rpm |
Horsepower | 221 hp @ 5500 rpm | 301 hp @ 5500 rpm |
Drivetrain | FWD | AWD |
Fuel Economy | ||
MPG City | 23 | 15 |
MPG Highway | 31 | 19 |
Interior | ||
Seating Capacity | 7 | 7 |
Key Features | ||
Sunroof/Moonroof | Optional | |
Safety | ||
Front Crash Overall | 4 | |
Side Crash Overall | 5 | |
Dimensions & Capacity | ||
Cargo Space | 12.4 cu ft | 11.6 cu ft |
Curb Weight | 3638 lbs | 5130 lbs |
Height | 66.7 in | 74.2 in |
Length | 182.4 in | 192.1 in |
Width | 79.5 in | 74.2 in |
Wheelbase | 111.4 in | 109.8 in |
Maximum Payload | 1315 lbs | |
Number of doors | 4 | 4 |
Maximum Towing Capacity | 6500 lbs | |
The 2021 Mercedes-Benz GLB, introduced in 2020, was a fresh addition to the Mercedes-Benz SUV lineup, fitting between the smaller GLA and the larger GLC. With a length of 4.63 metres and a wheelbase of 2.83 metres, it was slightly larger than the GLA but just shy of the GLC. Despite its unique dimensions, the GLB shared a strong family resemblance with its siblings, thanks to Mercedes-Benz's consistent styling DNA. Its athletic stance was enhanced by a 20-centimetre ground clearance, making it more versatile for soft roads and speed humps. Inside, the GLB boasted a modern and striking design, with round shapes and polished metal details creating an aerospace vibe. The cabin's fit and finish were top-notch, with features like a virtual instrument cluster and infotainment screen housed in a single elegant panel.
In contrast, the 2021 Lexus GX 460 retained its decade-old body shell, with updates like the spindle grille and triple-beam LED headlights introduced in previous years. The GX's styling was coherent despite its age, with a tough and aggressive look that appealed to SUV enthusiasts. However, the interior did not match the standards of a modern luxury SUV, with wood trim that felt like plastic and an abundance of actual plastic. The semi-aniline leather was a redeeming feature, but overall, the interior felt dated. The GX's upright dashboard and high centre console limited legroom, and the steering wheel's odd angle added to the bus-like driving experience. Despite these drawbacks, the GX offered excellent outward visibility, thanks to its boxy profile and low side glass.














The 2021 Mercedes-Benz GLB was equipped with a single engine option, a turbocharged 2.0-litre inline-4 producing 221 horsepower and 258 lb-ft of torque, paired with an eight-speed dual-clutch automatic transmission. The GLB's 4MATIC all-wheel drive was standard in Canada, providing better handling in various conditions. With a curb weight of 1,765 kilograms, the GLB managed a 0-100 km/h time of 6.9 seconds and a top speed of 210 km/h. While not the fastest, the power delivery was smooth and predictable, making it suitable for family use. The 4MATIC system offered features like hill-start assist and downhill speed regulation, enhancing its off-road capabilities.
The 2021 Lexus GX 460 featured a 4.6-litre V8 engine generating 301 horsepower and 329 lb-ft of torque, mated to a six-speed automatic transmission. Despite the V8's power, the GX's 2,349-kilogram weight affected its performance, requiring careful planning for merging and overtaking. The body-on-frame construction resulted in a less refined ride, with noticeable body roll and low grip in corners. However, the GX excelled in off-road capability, with a Torsen centre differential, low-range 4WD, and features like Crawl Control and Multi-Terrain Select. The GX offered 20.5 centimetres of ground clearance and respectable approach, departure, and break-over angles, making it a strong contender for off-road enthusiasts.
The 2021 Mercedes-Benz GLB offered the option of a third-row seat, which significantly impacted the second row and cargo space. The second row featured a 40:20:40 split seatback and a 40:60 split seat bottom, with adjustable recline and sliding capabilities. In the seven-passenger configuration, the third row was retractable, folding flat when not in use. Cargo space varied depending on the seating configuration, with up to 1,755 litres available in the two-row model. The front seats were highly adjustable and comfortable, with available heated and ventilated options. The second row was spacious for two adults, but the third row was best suited for children or short trips.
The 2021 Lexus GX's interior reflected its age, with limited legroom due to the upright dashboard and high centre console. The steering wheel's odd angle and tall seating position added to the bus-like feel. Despite these drawbacks, the GX offered excellent outward visibility, aided by its boxy profile and low side glass. The centre-console storage and cupholders were small, but the analog controls for climate and seat heaters were user-friendly. The GX came standard with three rows, but the third row was best reserved for children due to limited space. Cargo capacity was limited with the third row in use, but folding the second and third rows provided 1,833 litres of space.
The 2021 Mercedes-Benz GLB was well-equipped with technology, featuring the Mercedes-Benz User Experience (MBUX) infotainment system with voice control and natural language understanding. Standard features included a 7-inch digital instrument cluster, a 7-inch touchscreen, and smartphone integration with Apple CarPlay and Android Auto. The Premium Package offered larger 10.25-inch displays, a Burmester Surround Sound System, and keyless go. Optional features included navigation with augmented reality, adaptive suspension damping, and a head-up display, among others.
In contrast, the 2021 Lexus GX was light on tech features, lacking Apple CarPlay and Android Auto compatibility. The standard infotainment system had outdated graphics and limited functionality. However, the GX included analog controls for most functions, providing a straightforward interface. A 17-speaker Mark Levinson audio system was standard, but the overall tech offering was minimal compared to modern luxury SUVs.
The 2021 Mercedes-Benz GLB came with a suite of standard safety features, including active brake assist, adaptive braking technology, crosswind assist, and attention assist. Available safety options included active LED headlamps, adaptive cruise control, and a range of advanced driver assistance features. The GLB also featured the Pre-Safe system, which activated safety measures in the event of an imminent collision. However, the GLB had not been rated by the NHTSA or IIHS.
The 2021 Lexus GX 460 included the Lexus Safety System+ as standard, offering features like a pre-collision system with pedestrian detection, automatic emergency braking, and adaptive cruise control. Blind-spot monitoring and rear cross-traffic alert were also standard. However, the GX lacked some advanced safety features found in other Lexus and Toyota models, such as traffic-sign recognition and Lane Tracing Assist. The GX had not been rated by the NHTSA or IIHS.
CarGurus highlights

According to CarGurus experts, the overall rating for the 2021 Mercedes-Benz GLB was 8.0 out of 10, while the 2021 Lexus GX scored 5.3 out of 10. Based on these ratings, the Mercedes-Benz GLB emerged as the better choice, offering a more modern and well-rounded package for consumers seeking a luxury SUV.
Choose the 2021 Mercedes-Benz GLB if:
- You prioritize modern technology and infotainment features.
- You need a versatile interior with optional third-row seating.
- You value a smooth and predictable driving experience with good handling.
Choose the 2021 Lexus GX if:
- You require strong off-road capabilities and features.
- You prefer a traditional SUV design with a tough, aggressive look.
- You need a vehicle with a high towing capacity.
CarGurus highlights

According to CarGurus experts, the overall rating for the 2021 Mercedes-Benz GLB was 8.0 out of 10, while the 2021 Lexus GX scored 5.3 out of 10. Based on these ratings, the Mercedes-Benz GLB emerged as the better choice, offering a more modern and well-rounded package for consumers seeking a luxury SUV.
Choose the 2021 Mercedes-Benz GLB if:
Shop Now- You prioritize modern technology and infotainment features.
- You need a versatile interior with optional third-row seating.
- You value a smooth and predictable driving experience with good handling.
Choose the 2021 Lexus GX if:
Shop Now- You require strong off-road capabilities and features.
- You prefer a traditional SUV design with a tough, aggressive look.
- You need a vehicle with a high towing capacity.

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.






















