It’s been a year of sweeping change at Mercedes-Benz, as each of its sport-utility vehicles have received new badging plus either a significant refresh or a full redesign—all as part of a fresh nomenclature approach that draws parallels between SUVs and sedans.
Last but not least, the largest SUV in the lineup is getting quite a significant upgrade—and in alignment with the flagship S-Class sedan, its new name is the GLS-Class.
Although it’s essentially the same size, and the same package, as what was called the GL-Class last year, the largest utility vehicle in the Mercedes-Benz lineup gets some significant updates—including new front and rear styling, updated cabin appointments, new infotainment features, and new nine-speed automatic transmissions. Some nomenclature changes and an even quicker AMG GL63 performance model at the top of the lineup round out this pretty substantial makeover.
It starts with a front-end appearance that steps right in formation with those of other current Mercedes-Benz vehicles; the front-end look is bolder up at the top—more emphatic is a good way to put it—with the large three-pointed star, a chunkier grille, and a more drawn-back look to the air dam, plus fenders that are more expressively sculpted. Inside, the refresh is modest but noticeable. The infotainment screen now stands atop the middle of the dash, as it does in many other models from the brand, although it’s not quite the complete, cohesive, flowing remake that’s been given to the C-Class sedans and their GLC-Class crossover counterparts. That said, finishes have been upgraded, including several new upholstery options, so the general ambience of the cabin is a step up.
Initially the GLS is going to be offered in four models: the GLS 350d 4Matic (all-wheel drive), GLS 450 4Matic, GLS 550 4Matic, and the AMG GLS63.
The GLS350d is powered by the automaker’s familiar 3.0-liter V-6 turbo-diesel engine, making 255 horsepower and 455 pound-feet of torque. There’s a chance the naturally aspirated V-6 will return, but for now the entry-level gasoline model is a GLS450, with a twin-turbocharged 3.0-liter V-6 producing 362 hp and 369 lb-ft. The GLS550 is the higher-performance option, and it makes 449 horsepower and 516 lb-ft from its 4.7-liter twin-turbocharged V-8.
Serious driving enthusiasts who want a practical three-row utility vehicle in the garage will go for the top-performance GLS63, with a 5.5-liter twin-turbo V-8 making 577 hp and 561 lb-ft.
Mercedes hasn’t yet released performance specifications or fuel economy figures for any of the variants in the lineup, but based on the comparable improvements made to the related GLE-Class (formerly M-Class) lineup earlier this year, the nine-speed automatics should bring slight boosts to both performance and the official EPA ratings; as it is, the GLS 350d (diesel) is expected to remain one of the efficiency kings of its segment—especially in real-world highway driving.
Mercedes will, as in the GL, offer an Off-Road Engineering package in the GLS that boosts ride height from the usual 8.5 inches up to a full foot. Tow ratings haven’t been released yet either, yet the outgoing GL can pull up to 7,500 pounds.
The packaging of the GLS is essentially carried over from the GL; expect real, adult-size seating space in all three rows (although that third row is of course a little hard to get to). In front, passengers can ride on ventilated seats with a massage function. The second-row seats can be heated. The best trick these models have is their flip-and-fold feature. Not only do the power-folding third-row seats stow for more cargo space, but the second-row seats tuck away with optional power assistance. It’s not as large as a long-wheelbase Escalade, but for passengers it’s better.
The GLS arrives with a great set of safety credentials, because it carries over with much of the same underpinnings as its GL predecessor—and that’s a model that has an excellent real-world record for occupant protection. Standard safety gear on the GLS-Class includes a rearview camera system, Pre-Safe, Attention Assist to help warn you if you’re drowsy, and a full suite of airbags and stability controls. Options include Active Blind-Spot Assist, an Active Lane Keeping Assist system that actually steers to keep you in your lane (hands on the wheel, though), and a pedestrian detection system with automatic braking. A heated adaptive windscreen wiper system should help give you the best visibility in winter weather, too.
Standard features across the GLS lineup include remote start, cruise control, a power driver’s seat with memory settings, a power tailgate, and power folding side mirrors. Look for more information on U.S. features and specs soon, with first deliveries expected in late March, 2016.
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