Mercedes-Benz GLS-Class: The Definitive Review of Luxury, Performance & Practicality

Introduction to the Mercedes GLS-Class

The Mercedes-Benz GLS-Class represents the pinnacle of the brand's SUV lineup, offering a refined blend of luxury and utility. While nominally a rebadged version of the previous GL-Class, the GLS benefits from subtle styling updates and technology enhancements that keep it competitive in the premium large SUV segment.

Available in multiple configurations including the V6-powered GLS450, V8-powered GLS550, and high-performance AMG variants, the GLS-Class caters to a wide range of buyers. Its standard three-row seating and all-wheel drive make it particularly appealing to affluent families seeking both prestige and practicality.

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Exterior Design & Styling

The GLS-Class exterior represents an evolution rather than revolution of Mercedes' design language. The updates focus primarily on:

• Revised front fascia with new headlight designs and grille inserts
• Subtle bumper modifications that vary by trim level
• Minimal taillight revisions that maintain the familiar silhouette

The GLS550 distinguishes itself with more aggressive styling cues, including larger air intakes and a more commanding presence that justifies its premium positioning. While the changes may seem modest to casual observers, they successfully refresh the SUV's appearance without alienating traditional Mercedes buyers.

Performance & Driving Dynamics

Engine Options

The GLS-Class offers two primary gasoline powertrains:

Driving Experience

The GLS450's turbocharged V6 delivers adequate power for most situations, though some drivers may find it needs to work hard during passing maneuvers or uphill climbs. The nine-speed automatic transmission occasionally hesitates to downshift, requiring deliberate throttle input to access the engine's full potential.

Handling characteristics reflect the GLS's substantial size and weight:

• Steering provides consistent feedback but with a slow ratio
• Noticeable body roll in corners
• Standard air suspension delivers a comfortable but somewhat floaty ride
• Brake pedal has significant initial travel before firm engagement

The GLS550's additional power addresses many of the acceleration concerns, while optional adaptive dampers and active stabilizer bars improve handling dynamics for buyers willing to pay the premium.

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Interior Comfort & Luxury

Seating & Space

The GLS-Class excels in passenger accommodation with:

• Generous headroom and legroom in all three rows
• Power-tumbling second-row seats for easy third-row access (optional)
• Adult-friendly third row with elevated seating position
• Excellent outward visibility from all seating positions

Materials & Craftsmanship

While the GLS presents a generally upscale environment, material quality varies throughout the cabin:

• Upper dashboard features premium stitched materials
• Door panels and lower dash areas use harder plastics
• Standard MB-Tex vinyl upholstery feels out of place at this price point
• Optional Nappa leather upgrades deliver appropriate luxury

When compared to rivals like the Range Rover Sport or Cadillac Escalade, the GLS's interior falls slightly short in consistent luxury execution, though it maintains superior practicality.

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Technology & Infotainment

Mercedes' COMAND system serves as the hub for the GLS's technology features:

• Standard 7-inch display (optional 8-inch upgrade)
• Apple CarPlay compatibility (no Android Auto)
• Controller-based interface with touchpad input
• Available premium audio systems from Harman Kardon or Bang & Olufsen

The system's reliance on a console-mounted controller rather than touchscreen operation creates a learning curve, particularly when using Apple CarPlay's touch-oriented interface. However, the native navigation system proves comprehensive with sharp graphics and detailed mapping.

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Cargo & Practicality

The GLS-Class delivers exceptional utility for a luxury SUV:

• 16 cubic feet behind the third row
• 49.4 cubic feet with third row folded
• 93.8 cubic feet maximum cargo volume
• Power-folding third row with one-touch operation

These figures compare favorably with larger competitors like the Infiniti QX80, while the power-folding seats offer convenience advantages over many rivals. The second row requires manual folding for maximum cargo space, representing one of the few practicality compromises.

Safety Features & Ratings

While the GLS-Class hasn't undergone independent crash testing by major agencies, it offers comprehensive safety technology:

• Standard forward collision warning with automatic emergency braking
• Available blind spot monitoring and lane keeping assist
• Optional adaptive cruise control with lane centering
• Abundant LATCH anchors for child seats (second and third rows)

The SUV's excellent visibility and predictable handling further contribute to real-world safety, while available night vision assistance represents cutting-edge protection technology.

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Competitive Comparison & Value

The GLS-Class occupies a unique position in the luxury SUV market:

While the GLS commands a premium price, particularly in higher trims, it justifies this through superior third-row accommodations and Mercedes' brand cachet. Buyers prioritizing driving dynamics may prefer the Range Rover Sport, while those seeking maximum luxury at similar prices might consider the Escalade.

Final Verdict

The Mercedes-Benz GLS-Class succeeds as a practical luxury hauler that doesn't sacrifice utility for prestige. While it falls short of class leaders in driving engagement and some interior materials, its spacious three-row cabin, strong engine options, and comprehensive technology make it a compelling choice for affluent families.

Prospective buyers should consider:

• The GLS450 provides sufficient performance for most buyers
• Option packages significantly enhance luxury and technology
• Third-row space surpasses many competitors
• Resale values remain strong for the Mercedes brand

For those seeking the ultimate combination of Mercedes luxury and family-friendly practicality, the GLS-Class represents one of the most complete packages in its segment.