2021 Mercedes-Benz GLS vs 2021 Lexus GX

The 2021 Mercedes-Benz GLS continued the legacy of its predecessors with a refined and modern design. Originally introduced as the GL-Class, the GLS evolved into a more sophisticated and tech-savvy SUV, appealing to luxury-seeking families. Its exterior featured softened angles and lines, creating a sleeker appearance despite its large size. Inside, the GLS boasted a futuristic cabin with a massive digital screen dominating the dashboard, emphasizing its reliance on advanced technology. The GLS was available in three trims: GLS 450, GLS 580, and the high-performance AMG GLS 63, each offering a range of luxurious features and options to enhance comfort and convenience.

In contrast, the 2021 Lexus GX retained its traditional styling, reflecting its long-standing presence in the market. The GX's design, with its prominent spindle grille and triple-beam LED headlights, remained consistent with previous models, offering a distinctive and aggressive look. However, the interior of the GX felt dated, with wood trim that resembled plastic and an abundance of actual plastic materials. While leather upholstery was standard, the overall interior quality did not match the expectations of a modern luxury SUV. Despite its shortcomings, the GX's rugged appearance and off-road capabilities appealed to those seeking a more traditional SUV experience.

The 2021 Mercedes-Benz GLS offered a range of powerful engine options, starting with the GLS 450's 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, delivering 483 horsepower and 516 pound-feet of torque. Both models featured a nine-speed automatic transmission and Mercedes' 4MATIC all-wheel-drive system. The AMG GLS 63 took performance to another level with a hand-crafted 4.0-liter twin-turbo V8 engine, generating an impressive 603 horsepower and 627 pound-feet of torque. This powerhouse allowed the AMG GLS 63 to accelerate from zero to 60 mph in just 4.1 seconds, reaching a top speed of 174 mph. The GLS also featured an adaptive air suspension system, providing a smooth and composed ride, even on rough roads.

In comparison, the 2021 Lexus GX kept things simple with a single engine option: a 4.6-liter V8 producing 301 horsepower and 329 pound-feet of torque, paired with a six-speed automatic transmission. While the V8 provided sufficient power for initial acceleration, the GX's weight of 5,130 pounds became apparent at higher speeds, requiring careful planning for merging and overtaking. The GX's body-on-frame construction resulted in a less refined ride quality, with noticeable body roll and low grip in corners. However, the GX excelled in off-road capability, featuring a Torsen center differential, low-range 4WD, and various driver aids for tackling challenging terrains. The optional Off-Road Package further enhanced its off-road prowess, making it a suitable choice for adventure enthusiasts.

The 2021 Mercedes-Benz GLS offered a spacious and comfortable interior with three rows of seating. The first and second rows provided ample headroom and legroom, while the third row, though less spacious, could accommodate full-size adults. The GLS boasted 17.4 cubic feet of cargo space behind the third row, expanding to 42.7 cubic feet with the third row folded, and a total of 87.4 cubic feet with both the second and third rows folded. The power-folding third row and numerous storage compartments added to its practicality, making it a versatile choice for families.

In contrast, the 2021 Lexus GX's interior felt cramped, with limited legroom due to the upright dashboard and high center console. The steering wheel's odd angle and tall seating position contributed to a bus-like driving experience. While the GX offered excellent outward visibility, the forward view was hindered by the tall hood. The GX's third row was best suited for children, as accessing it was challenging, and it significantly reduced cargo space. With the third row folded, the GX provided 64.7 cubic feet of cargo space, which was less than some competitors. Overall, the GX's interior design and functionality lagged behind more modern SUVs.

The 2021 Mercedes-Benz GLS featured the advanced MBUX infotainment system, characterized by a massive touchscreen and a user-friendly interface. The system included Apple CarPlay and Android Auto, though a USB-C cable was required for connectivity. The MBUX system's voice-control feature allowed for intuitive interaction, responding to commands like "Hey Mercedes." The digital dash extended to the fully-digital instrument panel, offering customizable displays controlled by touch-sensitive pads on the steering wheel. While there was a learning curve, the technology in the GLS was comprehensive and cutting-edge.

In contrast, the 2021 Lexus GX was light on tech features, lacking Apple CarPlay and Android Auto compatibility. The standard infotainment system had outdated graphics and limited functionality, with a separate display for time and temperature. However, the GX offered analog controls for most functions, providing a straightforward interface. While this simplicity might appeal to some, it fell short of the tech-savvy features expected in a luxury SUV.

The 2021 Mercedes-Benz GLS came equipped with a comprehensive suite of driver-assistance features, including Active Brake Assist, forward-collision avoidance, blind-spot monitoring, and automatic high beams. Additional safety options included lane-keep assist, adaptive cruise control, and stop-and-go cruise control. The GLS also featured a full array of airbags, traction control, and a tire-pressure monitoring system, ensuring a high level of safety for occupants.

The 2021 Lexus GX included the Lexus Safety System+ bundle as standard, offering forward-collision warning, automatic emergency braking, lane-departure warning, and adaptive cruise control. Blind-spot monitoring and rear cross-traffic alert were also standard. However, the GX lacked some advanced safety features found in other Lexus and Toyota models, such as traffic-sign recognition and Lane Tracing Assist.