2025 Acura MDX vs 2026 Mercedes-Benz GLS

The 2025 Acura MDX underwent subtle styling updates, including a new grille, revised front bumper, and darkened headlights and taillights, which enhanced its sporty and performance-oriented appearance. The interior saw more significant changes with the introduction of a new touchscreen infotainment system, replacing the previous touchpad interface, and offering more storage space. The MDX Advance package and MDX A-Spec Advance received seats from the previous Type S model, while the Type S got a new seat design. Additional sound insulation and acoustic laminated window glass contributed to a quieter cabin, although the gloss black plastic trim on the dashboard was prone to collecting dust and smudges. The controls were logically placed, making them easy to find and use, and the new A-Spec Advance trim level combined luxury with a sportier look, with a price tag nearing $70,000.

The 2026 Mercedes-Benz GLS, available in several trims including the GLS 450, GLS 580, AMG GLS 63, and Maybach GLS 600, offered a range of prices from $91,600 to $181,350. The GLS 450 test vehicle featured the new Manufaktur Edition Package, which included 21-inch AMG wheels, the AMG Line Exterior Package, and the Night Package, along with exclusive paint colors and premium leather upholstery. The interior, similar to the smaller GLE-Class, boasted high-quality materials and detailing, although body creaks were noted on chilly mornings. The GLS 450 came with standard artificial leather upholstery, with options for higher-grade leather and various interior trims. The dual 12.3-inch displays were well-integrated, and the control layout, including seat adjusters on the doors and a transmission gear-selector stalk, was user-friendly.

The 2025 Acura MDX was known for its performance-oriented design, with the Type S model featuring a turbocharged 3.0-liter V6 engine producing 355 horsepower and 354 lb-ft of torque. Most buyers opted for the standard 3.5-liter V6 engine, delivering 290 hp and 267 lb-ft of torque through a 10-speed automatic transmission. The MDX offered various driving modes, including Comfort, Normal, Sport, Snow, and Individual, with the A-Spec Advance trim achieving an EPA-rated 21 mpg in combined driving. The MDX provided a smooth and comfortable ride, with the ability to tackle twisty roads confidently, although it was not designed for off-roading.

The 2026 Mercedes-Benz GLS 450 was powered by a turbocharged 3.0-liter inline-six engine with mild-hybrid assist, producing 375 horsepower and 369 lb-ft of torque. Coupled with a nine-speed automatic transmission and standard 4Matic all-wheel-drive, the GLS 450 accelerated from 0-60 mph in 5.8 seconds. The GLS offered multiple driving modes, including Comfort, Eco, Sport, Off-Road, and Individual, with an EPA rating of 21 mpg combined. The Airmatic adaptive suspension provided a smooth ride, and the GLS had a maximum towing capacity of 7,700 pounds. The GLS exhibited occasional delays in responsiveness, but the turbo-six engine delivered a sensational sound under hard acceleration.

The 2025 Acura MDX featured 16-way power-adjustable front seats with heating, ventilation, and massage programs, wrapped in perforated leather. The second row could be configured as a bench seat or individual bucket seats, with the option to remove the center section for easier access to the third row. The third-row seat was less comfortable for adults, and in-cabin storage was adequate. Cargo volume measured 16.3 cubic feet behind the third row, expanding to 71.4 cubic feet with the second row folded.

The 2026 Mercedes-Benz GLS offered standard seven-passenger seating, with a six-passenger configuration available. The GLS provided exceptional comfort, with options for massaging seats, a heated steering wheel, and an executive-style rear seat package. The third-row seat offered good thigh support, although legroom was snug. Storage locations were limited, but the glove compartment was spacious. Cargo space measured 17.4 cubic feet behind the third row, expanding to 84.7 cubic feet with the second row folded.

The 2025 Acura MDX introduced a new 12.3-inch touchscreen infotainment system with Alexa and Google Built-in, eliminating the previous touchpad interface. The system supported wireless Apple CarPlay and Android Auto, with an upgraded Bang & Olufsen audio system available. The digital instrumentation display offered two themes, and a head-up display provided comprehensive data. The MDX Advance and A-Spec Advance featured a surround-view camera system for easier parking.

The 2026 Mercedes-Benz GLS featured dual 12.3-inch displays with the Mercedes-Benz User Experience (MBUX) infotainment system. Standard features included wireless Apple CarPlay and Android Auto, a navigation system with augmented reality, and a Burmester surround-sound system. Options included gesture control, a head-up display, and rear infotainment screens. The MBUX system was user-friendly, with a digital assistant capable of executing various commands.

The 2025 Acura MDX came with the AcuraWatch collection of driver assistance features, including forward-collision warning, automatic emergency braking, and lane-keeping assist. The AcuraWatch 360 package, exclusive to the Type S Advance, added features like front cross-traffic alert and evasive steering warning. The MDX received a five-star overall rating from the NHTSA, with the 2024 model earning a Top Safety Pick+ rating from the IIHS.

The 2026 Mercedes-Benz GLS offered nearly 40 safety and driver-assistance systems, including Pre-Safe, Crosswind Assist, and Active Emergency Stop Assist. The GLS featured front and rear parking sensors, a surround-view camera system, and a hands-on driver-assistance system. The GLS required active driver participation, with some limitations in handling curves and braking behavior.