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The Mercedes-Benz GLS is known for its exceptional luxury and cutting-edge technology, but where this SUV truly shines is under the hood. With three engine options capable of powerful performance, the 2025 Mercedes-Benz GLS boasts a thrilling drive, wherever the Sussex roads take you. Learn more about the 2025 Mercedes-Benz GLS fuel economy, towing capacity, and engine specifications with this performance guide from Mercedes-Benz of Newton.
As mentioned, the 2025 Mercedes-Benz GLS lineup offers three engines, each tied to a specific trim level. Whether you prefer the more efficient performance of the Mercedes-Benz GLS 450 or the heart-pounding thrills of the AMG® GLS 63, you’ll find the perfect combination of power and economy for your Hackettstown trips in this Mercedes-Benz SUV. Explore all the Mercedes-Benz GLS engine options available below:
In addition to significant horsepower and torque, the 2025 Mercedes-Benz GLS provides unparalleled towing capabilities for all your weekend journeys out of Hamburg. So, how much Mercedes-Benz GLS towing capacity can you expect? When properly equipped with the optional trailer hitch, the 2025 Mercedes-Benz GLS towing capacity reaches up to 7,700 pounds*.
While power and utility are important, rising gas prices have many drivers interested in the Mercedes-Benz GLS fuel economy figures. Depending on the model, the Mercedes-Benz GLS mpg ratings can reach up to 19 mpg in the city and 24 mpg on the highway**. Get all the details about the Mercedes-Benz GLS mpg ratings in the breakdown below:
To get the latest details about the Mercedes-Benz GLS mpg ratings and engine specifications, reach out to Mercedes-Benz of Newton. Our team will set up a test drive at our Newton dealership so you can feel the premium performance from the driver’s seat. In the meantime, apply for financing and value your trade with our online tools to put a little less paperwork between you and your next luxury SUV.
Disclaimers:
*With optional trailer hitch. Read Operator’s Manual before towing. In some states, aftermarket trailer brakes are required. See dealer for details.
**EPA estimated fuel economy. Compare the estimated mpg to the estimated mpg of other vehicles. You may get different mileage depending on how fast you drive, weather conditions and trip length. Your actual highway mileage will probably be less than the highway estimate.
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