Mercedes-Benz GLS-Class: The Three-Row SUV That Puts Cabin Comfort First

The Mercedes-Benz GLS-Class sits at the top of the German luxury three-row SUV field, facing the BMW X7, Cadillac Escalade, and Lincoln Navigator for buyers who need seven seats without giving up a premium interior. Where rivals emphasize sporty handling or oversized presence, the GLS builds its case around passenger comfort and a hushed, controlled ride — essentially carrying S-Class priorities into a taller body. Every GLS comes with three standard power-adjustable rows, self-leveling AIRMATIC air suspension, and a choice of six-cylinder, V8, or AMG-tuned powertrains. For buyers who want a full-size SUV that feels closer to a sedan behind the wheel, the GLS is the segment reference point. Its main trade-off is price: the range starts near $90,000, and options climb quickly.

Why consider Mercedes-Benz GLS-Class

The GLS distinguishes itself from the BMW X7 by prioritizing ride isolation and rear-seat comfort over sharp handling. Standard AIRMATIC air suspension with adaptive damping absorbs road imperfections more thoroughly than the X7's steel springs, making the GLS the quieter, softer companion on long highway trips. Cargo space measures 17.4 cubic feet behind the third row and expands to 84.7 cubic feet with all rows folded, per Mercedes-Benz USA's published figures. Those numbers rival the Cadillac Escalade while keeping a lower step-in height that makes accessing the cabin easier for children and older passengers.

Distinct strengths include:

• Standard three-row seating with power adjustment on all rows, plus an optional second-row bench or captain's chairs
• Powertrain range spanning a 375-hp mild-hybrid six-cylinder to a 603-hp AMG V8
• Self-leveling air suspension standard on every model, with E-ACTIVE BODY CONTROL available on the GLS 580
• Generous cargo volume with all rear rows folded, competitive with larger body-on-frame rivals
• MBUX infotainment with a 64-color ambient lighting system and available Burmester surround audio

Specifications and powertrains

GLS 450 4MATIC: A 3.0-liter turbocharged inline-six with a 48-volt mild-hybrid system produces 375 horsepower and 413 lb-ft of torque. Mercedes-Benz quotes a 0-60 mph time of 5.8 seconds in current models, dropping to 5.4 seconds in the updated 2027 version with a more powerful electric auxiliary compressor. A 9G-TRONIC nine-speed automatic and full-time 4MATIC all-wheel drive are standard.

GLS 580 4MATIC: A 4.0-liter biturbo V8 delivers 530 horsepower and 553 lb-ft of torque, with the integrated starter generator providing an additional 23 horsepower and 151 lb-ft on demand. Mercedes-Benz estimates a 0-60 mph time of 4.6 seconds. The 2027 update raises torque output further.

Mercedes-AMG GLS 63: The top trim uses a 4.0-liter biturbo V8 rated at 603 horsepower and 627 lb-ft, with an estimated 0-60 mph time of 3.9 seconds and an electronically limited top speed of 174 mph. AMG Performance 4MATIC+ all-wheel drive distributes torque variably across all four wheels.

Payment reality

The GLS 450 starts near $90,000 before destination, and the GLS 580 and AMG GLS 63 push well past $100,000 once options like E-ACTIVE BODY CONTROL, upgraded audio, and 23-inch wheels are added. Large luxury SUVs typically depreciate faster in their first three years than mainstream models, and the GLS follows that curve — so lease structures with a locked residual matter just as much as the financed price. Use the calculator above to compare down payment, term, and interest scenarios; the monthly figure depends heavily on your local market and chosen trim.

Warranty and maintenance

Mercedes-Benz USA covers the GLS with a four-year/50,000-mile bumper-to-bumper warranty, the same term for the drivetrain, and four years of roadside assistance. Scheduled maintenance alternates between A and B services at 10,000-mile or one-year intervals, with the first A service typically falling at the one-year mark. The brand's extensive US dealer network simplifies warranty work and parts sourcing, while independent Mercedes specialists become a cost-effective option after the factory coverage expires — particularly for the six-cylinder models, which share architecture with other M256-powered vehicles.

Who Mercedes-Benz GLS-Class suits

The GLS fits buyers who need genuine three-row seating and long-distance comfort without giving up a premium interior or smooth highway manners. It works well for growing families who want adults or teenagers in the third row, and for professionals who daily-drive the SUV while valuing cabin quietness and towing capacity. That said, the BMW X7 is the better choice for drivers who prioritize sharper handling and a lower entry price. The Cadillac Escalade offers more interior volume and a more imposing presence for those who want American-style scale, while the Lincoln Navigator emphasizes even softer rear-seat comfort with a lower starting MSRP. The GLS lands as the balanced middle of that group: the least dramatic, but the most sedan-like ride in the segment.