2024 Mercedes-Benz GLS vs 2025 Mazda CX-90

The 2024 Mercedes-Benz GLS exuded a refined elegance that, while bordering on understated, promised longevity in its appeal. The GLS 450 test vehicle featured striking 22-inch AMG rims, a new silver four-louver grille, and polished metal accents that complemented its lustrous paint. Inside, the GLS 450 boasted a sophisticated Bahia Brown over Black interior, enriched with natural-grain Grey Oak, contrast stitching, and polished aluminum accents. This combination of materials and detailing created an inviting and luxurious environment, making the GLS a delightful space to spend time.

In contrast, the 2025 Mazda CX-90 presented a luxury SUV-like appearance with its lustrous paint, polished chrome trim, and intricate 21-inch wheels. The sculptural sheet metal and athletic stance contributed to its dynamic look. Inside, the CX-90 Signature trim offered an upscale feel with polished metallic trim, Nappa leather, and clearly marked switchgear. However, some ergonomic issues, such as a confusing electronic shifter and non-touchscreen infotainment, detracted from the overall experience. Despite these drawbacks, the CX-90 maintained a sophisticated presence compared to other midsize three-row crossovers.

The 2024 Mercedes-Benz GLS 450, with its turbocharged 3.0-litre inline six-cylinder engine, delivered 375 horsepower and 369 pound-feet of torque. This powertrain, paired with a nine-speed automatic transmission and a variable 4Matic all-wheel-drive system, provided smooth and swift acceleration, reaching 100 km/h in 6.1 seconds. The GLS 450's mild-hybrid system added an instant 148 lb-ft of torque, enhancing its lively performance. With a maximum towing capacity of 3,500 kilograms and a combined fuel economy rating of 11.3 litres per 100 kilometres, the GLS 450 offered a balanced blend of power and efficiency. The adaptive air suspension and massive Continental tires contributed to its impressive handling, while the Off-Road menu in MBUX provided additional utility for adventurous drivers.

The 2025 Mazda CX-90, equipped with a turbocharged 3.3-litre inline-six engine, offered two power outputs: 280 horsepower and 332 pound-feet of torque for the standard model, and 319 horsepower and 369 pound-feet of torque for the high-output version. The power was managed by an eight-speed automatic transmission and a standard all-wheel-drive system, which biased power to the rear wheels for improved dynamics. The CX-90's maximum towing capacity was 2,268 kilograms, and its fuel economy ratings ranged from 9.3 to 9.5 litres per 100 kilometres, depending on the engine. Despite its impressive ride and handling, the CX-90's drivetrain lacked refinement, with unpredictable power delivery and transmission behaviour, especially when cold. The vehicle's firm suspension provided excellent road feedback but could be harsh on rough surfaces.

The 2024 Mercedes-Benz GLS offered a spacious and luxurious interior, with supple leather surfaces, heated and ventilated front seats, and a wide range of adjustments for optimal comfort. The second-row captain’s chairs provided excellent thigh support, and the panoramic sunroof added to the airy feel. However, accessing the third-row seat was cumbersome, and space was snug for adults. Cargo capacity was generous, with 355 litres behind the third row, 1,209 litres behind the second row, and a maximum of 2,400 litres with all seats folded.

The 2025 Mazda CX-90's interior, in Signature trim, featured Nappa leather upholstery, heated and ventilated seats, and a panoramic sunroof. While the front seats were comfortable, the ventilation system was less effective. The second-row captain’s chairs offered elevated seating positions but limited seat-track travel. The third row was best suited for children, though adults could fit with some adjustments. Cargo space was practical, with 451 litres behind the third row, 1,155 litres with the third row folded, and a maximum of 2,129 litres with all seats down. However, storage solutions were limited, with a focus on style over practicality.

The 2024 Mercedes-Benz GLS featured the latest MBUX infotainment system, with a 12.3-inch digital instrumentation panel and a 12.3-inch infotainment touchscreen. The system offered improved graphics and intuitive operation, though touch-sensitive controls on the steering wheel and centre console could cause accidental changes. Despite this, MBUX was praised for its natural voice recognition and augmented reality navigation, setting a high standard for automotive technology.

The 2025 Mazda CX-90's technology was more traditional, with a 12.3-inch digital instrumentation panel and a 12.3-inch infotainment screen. The infotainment system was touch-sensitive only with Apple CarPlay or Android Auto, requiring the use of a console knob for other functions. Mazda's voice recognition system was less effective, and the lack of a conversational digital assistant was noted. The CX-90 featured a 12-speaker Bose audio system and a head-up display, but the overall tech experience lagged behind competitors.

The 2024 Mercedes-Benz GLS came equipped with over 20 significant safety features, adjustable through the MBUX system. The advanced driving assistance systems (ADAS) were praised for their subtle and smooth operation, with effective forward-collision warning, lane-departure warning, and lane-keeping assist systems. The adaptive cruise control and lane-centring assist systems performed well, handling various driving conditions with ease.

The 2025 Mazda CX-90 was recognized for its safety, earning a Top Safety Pick+ rating from the IIHS and five-star ratings from the NHTSA. Standard safety features included forward collision warning, automatic emergency braking, and blind-spot monitoring. Higher trims added advanced features like steering assist and a surround-view camera system. While the driver aids generally met expectations, the speed reduction feature was found to be irritating, and the audible warning systems were overly intrusive.