2024 Mercedes-Benz GLS vs 2025 BMW X3

The 2024 Mercedes-Benz GLS exuded a refined elegance with its modern design, which, while understated, promised longevity. The GLS 450 test vehicle featured striking 22-inch AMG rims, a new silver four-louver grille, and polished metal accents, all complemented by lustrous paint. Inside, the GLS 450 boasted a Bahia Brown over Black interior with natural-grain Grey Oak, contrast stitching, and polished aluminum accents, creating a luxurious environment.

In contrast, the 2025 BMW X3 presented a seductive appearance for a two-box SUV. Its long hood, athletic proportions, and expressive 21-inch wheels emphasized its sporty stance. The test model's Arctic Race Blue paint, combined with gloss black M Sport details and Calm Beige upholstery, added to its allure. The interior, though not fancy, offered quality materials where expected, but some areas revealed its price point with less refined plastics.

The 2024 Mercedes-Benz GLS 450 featured a turbocharged 3.0-litre inline six-cylinder engine with mild-hybrid technology, producing 375 horsepower and 369 lb-ft of torque. It accelerated to 100 km/h in 6.1 seconds, offering smooth and seamless power delivery. The nine-speed automatic transmission and 4Matic all-wheel-drive system provided excellent dynamics, with a towing capacity of 3,500 kg and a fuel economy of 11.3 L/100 km.

The 2025 BMW X3 30 xDrive, with its turbocharged 2.0-litre four-cylinder engine, delivered 255 horsepower and 295 lb-ft of torque. It achieved a 0-100 km/h time of 6.3 seconds, aided by an eight-speed automatic transmission and xDrive AWD. The mild-hybrid system enhanced responsiveness, while the M50 xDrive variant offered a more powerful 3.0-litre inline six-cylinder engine with 393 hp. The X3's fuel economy was rated at 8.1 L/100 km, though real-world testing showed higher consumption.

The 2024 Mercedes-Benz GLS offered a spacious interior with supple leather surfaces, heated and ventilated front seats, and a commanding view. The second-row captain’s chairs provided excellent thigh support, while the third-row was snug for adults. Cargo space was generous, with up to 2,400 litres available.

The 2025 BMW X3 provided a wider and larger feel inside, with a simple dashboard and a BMW Curved Display. The front seats were comfortable with Veganza artificial leather, but the rear seats were less so. The cargo area offered 892 litres, with practical features like a grocery bag hook and additional storage under the load floor.

The 2024 Mercedes-Benz GLS featured the MBUX infotainment system with dual 12.3-inch displays. It offered improved graphics and intuitive operation, though touch-sensitive controls could be distracting. The system included natural voice recognition and augmented reality navigation.

The 2025 BMW X3 introduced iDrive 9 with a Curved Display. Despite some issues with profile setup and system responsiveness, the navigation system with augmented video was effective. Wireless Apple CarPlay worked flawlessly, though native infotainment features were less reliable.

The 2024 Mercedes-Benz GLS came with over 20 significant safety features, including adjustable ADAS settings. The systems operated smoothly, with effective forward-collision warning and lane-keeping assist.

The 2025 BMW X3 included standard safety features like forward collision warning and lane departure warning. The Premium Package added adaptive cruise control and Steering Assistant. The X3 earned a four-star overall rating from NHTSA, with some concerns in frontal-impact tests.