Compare the2025 Infiniti QX55VS 2024 Mercedes GLC Coupe

The Infiniti QX55 has standard driver and front passenger side knee airbags mounted low on the dashboard. These airbags helps prevent the driver and front passenger from sliding under their seatbelts or the main frontal airbags; this keeps them better positioned during a collision for maximum protection. Knee airbags also help keep the legs from striking the dashboard, preventing knee and leg injuries in the case of a serious frontal collision. The GLC Coupe doesn’t offer a front passenger side knee airbag.

The QX55’s standard lane departure warning system alerts a temporarily inattentive driver when the vehicle begins to leave its lane and gently nudges the vehicle back towards its lane. A lane departure warning system costs extra on the GLC Coupe.

Both the QX55 and the GLC Coupe have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, front and rear seatbelt pretensioners, height adjustable front shoulder belts, four-wheel antilock brakes, all wheel drive, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, blind spot warning systems, rearview cameras, rear cross-path warning and available around view monitors.

The QX55 comes with a full 4-year/60,000-mile basic warranty, which covers the entire truck and includes 24-hour roadside assistance. The GLC Coupe’s 4-year/50,000-mile basic warranty expires 10,000 miles sooner.

Infiniti’s powertrain warranty covers the QX55 2 years and 20,000 miles longer than Mercedes covers the GLC Coupe. Any repair needed on the engine, transmission, axles, joints or driveshafts is fully covered for 6 years or 70,000 miles. Coverage on the GLC Coupe ends after only 4 years or 50,000 miles.

The QX55’s corrosion warranty is 2 years longer than the GLC Coupe’s (7 vs. 5 years).

Infiniti pays for scheduled maintenance on the QX55 for 3 years and 45000 miles. Infiniti will pay for oil changes, tire rotations, air filter replacements, cabin filter replacement, brake fluid replacement, inspections, and any other required maintenance. Mercedes doesn’t pay scheduled maintenance for the GLC Coupe.

J.D. Power and Associates’ 2024 Initial Quality Study of new car owners surveyed provide the statistics that show that Infiniti vehicles are better in initial quality than Mercedes vehicles. J.D. Power ranks Infiniti above average in initial quality. With 19 more problems per 100 vehicles, Mercedes is rated below average.

From surveys of all its subscribers, Consumer Reports’ January 2024 Auto Issue reports that Infiniti vehicles are more reliable than Mercedes vehicles. Consumer Reports ranks Infiniti 16 places higher in reliability than Mercedes.

The QX55’s 2.0 turbo 4-cylinder produces 13 more horsepower (268 vs. 255) than the GLC Coupe’s 2.0 turbo 4-cylinder hybrid.

The QX55 has a standard continuously variable transmission (CVT). With no “steps” between gears, it can keep the engine at the most efficient speed for fuel economy, or keep it at its peak horsepower indefinitely for maximum acceleration. The GLC Coupe doesn’t offer a CVT.

For better traction, the QX55 has larger tires than the GLC Coupe (255/45R20 vs. 235/55R19).

The QX55’s tires provide better handling because they have a lower 45 series profile (height to width ratio) that provides a stiffer sidewall than the GLC Coupe’s standard 55 series tires.

For better ride, handling and brake cooling the QX55 has standard 20-inch wheels. Smaller 19-inch wheels are standard on the GLC Coupe.

The QX55 has a standard easy tire fill system. When inflating the tires, the vehicle’s integrated tire pressure sensors keep track of the pressure as the tires fill and tell the driver when the tires are inflated to the proper pressure. The GLC Coupe doesn’t offer vehicle monitored tire inflation.

Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires standard on the QX55 can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The GLC Coupe doesn’t offer run-flat tires.

For better maneuverability, the QX55’s turning circle is 2.3 feet tighter than the GLC Coupe’s (36.4 feet vs. 38.7 feet).

For greater off-road capability the QX55 has a 3.5 inches greater minimum ground clearance than the GLC Coupe (8.6 vs. 5.1 inches), allowing the QX55 to travel over rougher terrain without being stopped or damaged.

The Infiniti QX55 may be more efficient, handle and accelerate better because it weighs about 150 to 200 pounds less than the Mercedes GLC Coupe.

To almost totally eliminate engine vibration in the passenger area, the QX55 has an electronically controlled liquid-filled main engine mount. A computer-controlled electric current in the liquid changes its viscosity, allowing the mount to dampen the engine completely at all RPMs. The GLC Coupe uses conventional solid rubber engine mounts.

The QX55 uses computer-generated active noise cancellation to help remove annoying noise and vibration from the passenger compartment, especially at low frequencies. The GLC Coupe doesn’t offer active noise cancellation.

The QX55 has 1 inch more front headroom, .6 inches more front shoulder room, 1.5 inches more rear legroom and 1.3 inches more rear shoulder room than the GLC Coupe.

The QX55 has a much larger cargo volume with its rear seat up than the GLC Coupe with its rear seat up (26.9 vs. 19.2 cubic feet). The QX55 has a much larger cargo volume with its rear seat folded than the GLC Coupe with its rear seat folded (54.1 vs. 52.6 cubic feet).

J.D. Power and Associates surveys of service recipients show that Infiniti service is better than Mercedes. J.D. Power ranks Infiniti 6th in service department satisfaction (above the industry average). With a 24% lower rating, Mercedes is ranked 17th.

To improve rear visibility by keeping the rear window clear, the QX55 has a standard rear wiper. The GLC Coupe doesn’t offer a rear wiper.