2021 Mercedes-Benz GLS vs 2022 INFINITI QX80

The 2021 Mercedes-Benz GLS, a continuation of the third generation introduced in 2020, was a luxurious SUV that managed to blend size with sophistication. Originally known as the GL-Class, the GLS evolved to offer a more refined and family-friendly alternative to the rugged G-Class. Its exterior design featured softened angles and lines, creating a more streamlined appearance. Inside, the GLS boasted a futuristic cabin with a massive digital screen dominating the dashboard, emphasizing its tech-forward approach. Available in three trims—GLS 450, GLS 580, and the high-performance AMG GLS 63—the GLS offered a range of standard features, including remote keyless entry, nine USB ports, and a 13-speaker Burmester sound system. Optional packages allowed for further customization, adding features like massaging seats and advanced climate control.

In contrast, the 2022 INFINITI QX80 shared its platform with the Nissan Armada, yet distinguished itself with a unique front-end design featuring the signature Infiniti grille. The QX80's exterior was tastefully adorned with LED lighting and chrome accents, complemented by stylish 22-inch dark chrome alloy wheels. Inside, the QX80's cabin was outfitted with upscale materials, including quilted semi-aniline leather seats and wood trim. Despite its luxurious appointments, the QX80's interior design felt somewhat dated compared to its competitors. While the cabin was comfortable and spacious, it struggled to meet the high expectations set by the premium full-size SUV market, falling short in terms of modernity and innovation.

The 2021 Mercedes-Benz GLS offered a range of powerful engine options, starting with the GLS 450's twin-turbocharged 3.0-litre inline-six engine, producing 362 horsepower and 369 lb-ft of torque. The GLS 580 stepped up with a twin-turbocharged 4.0-litre V8, delivering 483 hp and 516 lb-ft. The AMG GLS 63, however, was the pinnacle of performance, featuring a hand-crafted 4.0-litre twin-turbo V8 engine that churned out an impressive 603 hp and 627 lb-ft of torque. All engines were paired with a nine-speed automatic transmission and Mercedes' 4MATIC AWD system. The AMG GLS 63 could accelerate from 0 to 100 km/h in just 4.2 seconds, with a top speed of 280 km/h. The GLS also featured an adaptive air suspension system, providing a smooth ride and precise handling, with multiple drive modes to tailor the driving experience.

The 2022 INFINITI QX80 was powered by a robust 5.6-litre V8 engine, generating 400 horsepower and 413 lb-ft of torque. This engine was paired with a seven-speed automatic transmission, offering smooth and seamless shifts. The QX80's 4WD system, based on the Nissan Patrol's off-road capabilities, provided ample ground clearance and a computer-controlled transfer case for various driving conditions. The QX80's towing capacity was a generous 3,855 kg, making it suitable for hauling large trailers or boats. Despite its size, the QX80 managed to control body lean during cornering, thanks to the Hydraulic Body Motion Control system. However, its nearly three-ton curb weight was a constant reminder of its substantial presence on the road.

The 2021 Mercedes-Benz GLS offered three rows of spacious seating, with ample headroom and legroom for first- and second-row occupants. The standard seven-passenger configuration could be adjusted to six with optional second-row captain's chairs. The third row, while not as spacious, was still suitable for adults. The GLS provided 355 litres of cargo space behind the third row, expanding to 1,209 litres with the third row folded, and 2,400 litres with all seats down. The interior featured numerous storage compartments, including a large centre console and spacious in-door bins.

The 2022 INFINITI QX80 required a climb to enter, owing to its tall ride height and body-on-frame construction. Inside, the cabin offered a spacious and airy feel, with good head- and legroom in the front seats. The QX80 could accommodate up to eight passengers with a second-row bench seat, or seven with captain's chairs. However, the third row was cramped for adults. Cargo space measured 470 litres behind the third row, 1,404 litres with the third row folded, and 2,694 litres with all seats down. The power-operated liftgate and third-row seats were convenient, though slow to operate.

The 2021 Mercedes-Benz GLS featured the MBUX infotainment system, with a massive touch screen and a trackpad for navigation. It included Apple CarPlay and Android Auto connectivity, though a USB-C cable was required. The MBUX system also offered voice control, activated by saying "Hey Mercedes," and a digital dash that extended to the instrument panel. The system's learning curve was offset by its comprehensive functionality and ease of use once mastered.

The 2022 INFINITI QX80, while not a technological marvel, offered a 12.3-inch Infiniti InTouch infotainment system with Bluetooth, wireless Apple CarPlay, Android Auto, and SiriusXM satellite radio. A Bose 17-speaker sound system was standard, along with a wireless smartphone charger. The dual-screen rear-seat entertainment system was a nice touch, though the lack of HDMI adapters was a drawback. The absence of Infiniti's ProPilot Assist was notable, highlighting the QX80's older architecture.

The 2021 Mercedes-Benz GLS came equipped with a comprehensive suite of driver-assistance features, including Active Brake Assist, rain-sensing wipers, and automatic high beams. Additional safety tech included lane-change assist, adaptive cruise control, and blind spot monitoring. The GLS also featured a full array of airbags, traction control, and a tire-pressure monitoring system.

The 2022 INFINITI QX80 offered a solid array of standard safety features, such as forward automatic emergency braking, blind-spot monitoring, and forward-collision warning. Additional safety items included driver attention alert and front knee airbags. The QX80 received a three-star rating for rollover resistance from the NHTSA, with the structurally similar 2021 model earning four stars for overall crash protection.