Compare the2023 Infiniti QX55VS 2022 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.

Over 200 people are killed each year when backed over by motor vehicles. The QX55 has standard Rear Automatic Braking that uses rear sensors to monitor and automatically apply the brakes to prevent a rear collision. The GLC Coupe doesn’t offer backup collision prevention brakes.

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 36,000 miles. Infiniti will pay for oil changes, lubrication and any other required maintenance. Mercedes doesn’t pay scheduled maintenance for the GLC Coupe.

From surveys of all its subscribers, Consumer Reports’ January 2021 Auto Issue reports that Infiniti vehicles are more reliable than Mercedes vehicles. Consumer Reports ranks Infiniti 9 places higher in reliability than Mercedes.

The QX55’s 2.0 turbo 4-cylinder produces 13 more horsepower (268 vs. 255) and 7 lbs.-ft. more torque (280 vs. 273) than the GLC Coupe’s 2.0 turbo 4-cylinder.

On the EPA test cycle the QX55 gets better fuel mileage than the GLC 300 Coupe (22 city/28 hwy vs. 21 city/27 hwy).

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.

For better maneuverability, the QX55’s turning circle is 2.3 feet tighter than the GLC 300 Coupe’s (36.4 feet vs. 38.7 feet).

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. 17.6 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. 49.4 cubic feet).

J.D. Power and Associates surveys of service recipients show that Infiniti service is better than Mercedes. J.D. Power ranks Infiniti 9th in service department satisfaction (above the industry average). With a 13% lower rating, Mercedes is ranked 18th.

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.