Review: 2024 Mercedes-Benz GLS 450

The GLS is the largest of Mercedes-Benz's sport utilities, offering three rows of adult-capable seating.

The Mercedes-Benz GLS-Class got a few updates for the 2024 model year. Including some exterior styling changes, a little more power under the hood of a few models, and better infotainment. Those changes to the luxury three-row SUV are great upgrades to an already great GLS.

The GLS is the largest of Mercedes-Benz’s sport utilities, offering three rows of adult-capable seating. It’s not as expensive as is the G-Class (“G-wagen”), but is larger and more expensive than the smaller GLE-Class SUV. The Mercedes-Benz GLS is made for larger families, with seating for six or seven and a decent amount of cargo space besides.

Like most Mercedes vehicles, the GLS-Class is made to be comfortable, luxurious, technologically-advanced, and to have strong performance. Its build quality is superb and its capabilities are surprisingly high. As the entry-level for the GLS-Class, the GLS 450 is well-rounded and feature-rich.

The GLS 450 is powered by a 3.0-liter turbocharged six-cylinder engine that outputs 375 horsepower (up from 362 before) and 369 pound-feet of torque. Its nine-speed automatic transmission, adaptive air ride suspension, and all-wheel drive are the team that take that engine’s output and make it smooth on the road. Standard equipment also includes 21-inch wheels, a panoramic sunroof, adaptive LED headlamps, interior ambient lighting (customizable), four-zone climate control, a 12.3-inch touchscreen, augmented video navigation, and a whole bunch of other things. A full suite of driver’s aids and safety systems are also standard.

Upgrades available for the 2024 Mercedes-Benz GLS 450 include heated second row seating, multi-contour front seating with massage, rapid-heating front seats, and an AMG-branded cosmetic upgrade.

Other models in the GLS lineup include the GLS 580 with a turbocharged V8 and the AMG GLS 63 with an even more powerful V8.

The 2024 Mercedes GLS is one of the best three-row luxury options on the market. There are larger options and more fuel efficient choices, but the GLS, especially in the 450 model, rides a middle-ground of useful versatility and fuel economy. It’s one of the more luxurious SUVs you can get as well. Technology-wise, the Mercedes-Benz GLS has few rivals.

On the road, the GLS 450 has a smart presence with comfort as a key component. It feels confident in the get-go and in the slow-down thanks to a well-tuned engine/transmission and strong braking. A light steering feel and easy maneuverability are also high points.

Out on the highway, the 2024 Mercedes-Benz GLS has a great feel and very quiet interior. Even in our normally windy Wyoming. Both the air ride suspension and excellent cabin design help with this.

We consider the 2024 Mercedes-Benz GLS-Class to be the benchmark for the luxury three-row SUV market. It hits every aspect well without specializing in any single attribute.

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Aaron Turpen
An automotive enthusiast for most of his adult life, Aaron has worked in and around the industry in many ways. He is an accredited member of the Rocky Mountain Automotive Press (RMAP), the Midwest Automotive Media Association (MAMA), the Texas Auto Writers Association (TAWA), and freelances as a writer and journalist around the Web and in print. You can find his portfolio at