2021 Mercedes-Benz GLS vs 2021 Lincoln Navigator

The third generation of the Mercedes-Benz GLS-Class, introduced in 2020, continued into 2021. Initially launched as the GL-Class in 2006, it was meant to replace the G-Class, but the latter's popularity kept it around. The GLS, with its three rows and luxurious interior, became a family-friendly alternative to the Navigator and Escalade. The name change from "GL" to "GLS" occurred midway through its second generation. The 2021 GLS featured softened angles and lines, making it appear less bulky than its predecessors. Inside, it boasted a futuristic cabin with a massive digital screen spanning nearly two-thirds of the dash, emphasizing its tech-reliant controls.

The GLS was available in three trims: GLS 450, GLS 580, and the performance-oriented AMG GLS 63. Standard features on the GLS 450 included remote keyless entry, remote start, nine USB ports, dual-zone automatic climate control, heated front seats, and a power liftgate. The GLS 580 added V8 power and additional luxury features like massaging front seats and illuminated running boards. The AMG GLS 63 stood out with aggressive bodywork, quad-outlet exhaust, and a performance-inspired interior, including a flat-bottomed sport steering wheel with a leather stripe.

The Lincoln Navigator, once a dressed-up Ford Expedition, evolved into a unique luxury SUV. Sharing its side glass and overall footprint with the Expedition, the Navigator distinguished itself with elegant and understated design elements. The 2021 Navigator Reserve, priced at $92,000, impressed with its Pristine White exterior, black wheels, and illuminated Lincoln logo. It featured a light show when locking or unlocking, adding a touch of sophistication.

Inside, the Navigator offered seven color palettes, with the Slate Gray interior of the test model showcasing fine details. The wood trim, push-button gear selector, floating center console, and minimalist digital instrument panel exuded modernity. Materials were high-quality, and panel gaps were tight. The Black Label trims elevated luxury further with unique textures and softer leather. The Perfect Position seats, adjustable in 30 ways, provided exceptional comfort. The Navigator's spacious interior and thoughtful design made it a standout in the luxury SUV segment.

The 2021 Mercedes-Benz GLS offered a range of powerful engines. The entry-level GLS 450 featured a twin-turbocharged 3.0-liter inline-six engine producing 362 horsepower and 369 pound-feet of torque. The GLS 580 upgraded to a twin-turbocharged 4.0-liter V8 with 483 horsepower and 516 pound-feet of torque. Both models used a nine-speed automatic transmission and Mercedes' 4MATIC all-wheel-drive system. The AMG GLS 63, with its hand-crafted 4.0-liter twin-turbo V8, delivered an impressive 603 horsepower and 627 pound-feet of torque. It could accelerate from 0 to 60 mph in just 4.1 seconds, with a top speed of 174 mph. The GLS 63 featured an adaptive air suspension system, adjustable ground clearance, and multiple drive modes, enhancing its performance and handling.

The 2021 Lincoln Navigator was powered by a twin-turbo V6 engine from the Ford Raptor, producing 450 horsepower and 510 pound-feet of torque. Paired with a 10-speed automatic transmission, the Navigator offered rear-wheel drive (RWD) or four-wheel drive (4WD) options. It had a towing capacity of 8,300 pounds for 4WD models and 8,700 pounds for RWD models. While fuel economy was not its strong suit, averaging in the teens, the Navigator's adaptive dampers provided a comfortable ride. However, its suspension felt less refined compared to competitors like the Cadillac Escalade. The Navigator excelled in highway refinement and power, with paddle shifters adding a touch of sportiness.

The 2021 Mercedes-Benz GLS featured three rows of spacious seating, accommodating up to seven passengers. Optional second-row captain's chairs reduced seating capacity to six. The front-row seats offered ample space and comfort, with controls for lumbar support and massaging functions accessible through the touch screen. The third row, while not as spacious, was suitable for full-size adults. The GLS provided 17.4 cubic feet of cargo space behind the third row, expanding to 42.7 cubic feet with the third row folded, and 87.4 cubic feet with both rows folded. The power-folding third row and numerous storage compartments added to its practicality.

The 2021 Lincoln Navigator boasted a spacious interior, accommodating up to eight passengers with the optional second-row bench. The boxy design maximized cargo space, offering 19 cubic feet behind the third row, 57 cubic feet behind the second row, and 103 cubic feet in total. The long-wheelbase Navigator L provided even more storage. The rear glass opened separately from the tailgate, adding convenience. The Navigator Reserve featured heated second-row seats and a three-zone climate system. The front seats were highly adjustable and comfortable, with excellent visibility. However, parking the large SUV could be challenging despite the 360-degree cameras.

The 2021 Mercedes-Benz GLS came equipped with the MBUX infotainment system, featuring a large touch screen and a trackpad controller. It included Apple CarPlay and Android Auto, though a USB-C cable was required for connectivity. The MBUX system offered voice control, responding to commands like "Find me a gas station." The digital dash extended to the fully-digital instrument panel, controlled by touch-sensitive pads on the steering wheel. While there was a learning curve, the system made the GLS's extensive technology more manageable.

The 2021 Lincoln Navigator's 10-inch touchscreen felt small compared to newer competitors. Its infotainment system, while intuitive, lacked wireless Apple CarPlay and Android Auto. The 20-speaker Revel Ultima stereo was good but not exceptional. The Navigator offered onboard 4G WiFi, wireless device charging, and a smartwatch app. The rear entertainment system included Roku media streaming. Drive mode animations on the instrument panel added a touch of elegance. While not as advanced as some rivals, the Navigator's technology was user-friendly and effective.

The 2021 Mercedes-Benz GLS came standard with a comprehensive suite of driver-assistance features, including Active Brake Assist, forward-collision avoidance, rain-sensing wipers, blind-spot monitoring, and automatic high beams. Additional safety features included automatic parking assist, a surround-view camera system, a driver-drowsiness monitor, and crosswind assist. Optional safety tech included lane-keep assist, lane-change assist, adaptive cruise control, and a following-distance indicator. The GLS also featured a full array of airbags, traction control, self-tensioning seatbelts, and a tire-pressure monitoring system.

The 2021 Lincoln Navigator received five stars overall from the National Highway Traffic Safety Administration, with four stars for rollover resistance in 4WD models and three stars for RWD models. The Insurance Institute for Highway Safety had not rated the Navigator in its current generation. Standard safety features included automatic emergency braking, lane-keep assist, blind-spot monitoring, and auto high beams. Adaptive cruise control was optional, though the Navigator's self-steering capabilities were not as advanced as some competitors. Optional inflatable rear seat belts added an extra layer of safety.