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2020 Mercedes-Benz GLB Review: A Compact SUV with Rare Third-Row Seating
The Mercedes-Benz GLB: A Compact Luxury SUV with Unexpected Versatility
The Mercedes-Benz GLB represents a strategic expansion in the brand's SUV lineup, offering a unique combination of compact dimensions with the flexibility of optional third-row seating. Positioned between the sportier GLA and the more conventional GLC, the GLB carves out its own niche with a boxier, more utilitarian design that doesn't compromise on Mercedes' signature luxury.
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Competitive Landscape: Where the GLB Fits In
The GLB enters an emerging segment of compact luxury SUVs offering optional third-row seating, competing with:
- Land Rover Discovery Sport: The established premium option with off-road credentials
- Volkswagen Tiguan: A more affordable mainstream alternative
- Lexus RX-L: A stretched version of the popular RX with third-row seating
What sets the GLB apart is its combination of Mercedes-Benz prestige, a more squared-off traditional SUV profile, and the flexibility to switch between five- and seven-passenger configurations.
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Distinctive Design: Rugged Meets Refined
Departing from the curvaceous styling of Mercedes' other compact SUVs, the GLB adopts a more upright, boxier silhouette reminiscent of the iconic G-Class. This design approach delivers several practical advantages:
Exterior Highlights
- Traditional SUV proportions with squared-off rear
- Low beltline for excellent visibility
- Abundant wheel arch and lower body cladding
- Optional LED headlights and foglights
- Minimal roof slope for maximum interior space
Dimensional Advantages
- 111.4-inch wheelbase (just 1.7" shorter than GLC)
- 5.1 inches longer than GLA
- Nearly 9 inches longer overall than GLA
- Over 5 inches taller than GLA
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Interior Innovation: Space and Technology
The GLB's cabin represents a masterclass in packaging efficiency, offering surprising space in a compact footprint. The interior design follows Mercedes' latest philosophy seen in the A-Class and CLA, with a focus on digital interfaces and premium materials.
Seating Configurations
Buyers can choose between:
- Five-seat layout: 20 cubic feet behind second row, expanding to 62 cubic feet with seats folded
- Seven-seat option: Two additional seats in third row (best suited for children)
Technology Integration
The GLB features Mercedes' advanced MBUX (Mercedes-Benz User Experience) system with:
- Dual 10.25-inch displays (instrument cluster and infotainment)
- Intuitive touchscreen, touchpad, and voice control
- Available augmented reality navigation
- Color head-up display option
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Performance and Capability
Under the hood, the GLB offers a single powertrain option at launch, with potential for expansion:
Powertrain Specifications
- 2.0L turbocharged 4-cylinder engine
- 221 horsepower @ 5,500 rpm
- 258 lb-ft of torque @ 1,800-4,000 rpm
- 8-speed dual-clutch automatic transmission
- Front- or all-wheel drive configurations
All-Wheel Drive System
- Front-biased power distribution
- Up to 30% power to rear in Sport mode
- 50/50 lock in Off-Road mode
- Includes hill descent control
- Special off-road display pages
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Advanced Safety Systems
Mercedes-Benz equips the GLB with its latest safety technologies, including:
- Active Brake Assist: Autonomous emergency braking
- Active Distance Assist DISTRONIC: Adaptive cruise with stop-and-go
- Active Lane Keeping Assist: Helps prevent unintentional lane departures
- Active Parking Assist: Semi-autonomous parking capability
- PRE-SAFE® System: Prepares vehicle for imminent collision
For third-row occupants, Mercedes includes side-window airbags and LATCH anchors for child seats, demonstrating thoughtful protection for all passengers.
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Driving Experience and Handling
The GLB strikes a balance between comfort and agility, with:
- MacPherson strut front suspension
- Multi-link rear suspension
- Optional adaptive damping system
- Electromechanical power steering
- Multiple drive modes (Comfort, Sport, Eco, Individual, and Off-Road for 4MATIC models)
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Frequently Asked Questions
While the GLB offers third-row seating, the space is best suited for children or occasional adult use. The primary configuration remains the five-seat layout, with the third row as an option for flexibility.
The GLB offers more upright packaging with optional third-row seating, while the GLC focuses on traditional five-passenger luxury. The GLB is slightly shorter in wheelbase but offers more headroom and a boxier cargo area.
Yes, the GLB excels as a family vehicle with its combination of safety features, flexible seating, and premium amenities. The available third row adds versatility for growing families or those who frequently transport extra passengers.
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Final Thoughts: Who Should Consider the GLB?
The Mercedes-Benz GLB represents an intelligent compromise for buyers who:
- Want Mercedes-Benz prestige in a practical package
- Occasionally need third-row seating but don't want a larger SUV
- Prefer a more traditional SUV shape over coupe-like styling
- Value advanced technology and safety features
- Seek a balance between urban maneuverability and family practicality
With its unique positioning in the Mercedes lineup and thoughtful packaging, the GLB offers a compelling alternative to both mainstream and luxury competitors in the compact SUV segment.
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Last Updated On May, 30-2025