Compare the2025 Mercedes GLBVS 2025 Infiniti QX50

The GLB’s optional pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The QX50 doesn’t offer pre-crash pretensioners.

When descending a steep, off-road slope, the GLB’s standard Downhill Speed Regulation allows you to creep down safely. The QX50 doesn’t offer Downhill Speed Regulation.

Both the GLB and QX50 have rear cross-traffic warning, but the GLB has Active Brake Assist (automatically applies the brakes) to better prevent a collision when backing near traffic. The QX50’s Rear Cross Traffic Alert doesn’t automatically brake.

The GLB’s driver alert monitor detects an inattentive driver then sounds a warning and suggests a break. According to the NHTSA, drivers who fall asleep cause about 100,000 crashes and 1500 deaths a year. The QX50 doesn’t offer a driver alert monitor.

Both the GLB and the QX50 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, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, blind spot warning systems, rearview cameras, rear cross-path warning, available all wheel drive, lane departure warning systems and around view monitors.

There are almost 2 times as many Mercedes dealers as there are Infiniti dealers, which makes it much easier should you ever need service under the GLB’s warranty.

To reliably start during all conditions and help handle large electrical loads, the GLB has a standard 800-amp battery. The QX50’s 720-amp battery isn’t as powerful.

J.D. Power and Associates’ 2024 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Mercedes vehicles are more reliable than Infiniti With 1 fewer problems per 100 vehicles in the first three years of ownership, J.D. Power ranks Mercedes higher than Infiniti.

As tested in Motor Trend the Mercedes GLB is faster than the Infiniti QX50:

	GLB	QX50
Zero to 60 MPH	6.2 sec	6.9 sec
Quarter Mile	14.8 sec	15.4 sec
Speed in 1/4 Mile	94.1 MPH	91.6 MPH

On the EPA test cycle the GLB gets better mileage than the QX50:

			MPG
GLB
	FWD	2.0 turbo 4-cyl.	25 city/33 hwy
	AWD	2.0 turbo 4-cyl.	24 city/33 hwy
QX50
	AWD	2.0 turbo 4-cyl.	22 city/28 hwy

Regenerative brakes improve the GLB’s fuel efficiency by converting inertia back into energy instead of wasting it. The QX50 doesn’t offer a regenerative braking system.

In heavy traffic or at stoplights the GLB’s engine automatically turns off when the vehicle is stopped, saving fuel and reducing pollution. The engine is automatically restarted when the driver gets ready to move again. If the conditions warrant or the driver wishes, the system can be manually disabled at any time for the duration of a trip. The QX50 doesn’t offer an automatic engine start/stop system.

The GLB has standard front and rear gas-charged shocks for better control over choppy roads. The QX50’s suspension doesn’t offer gas-charged shocks.

The GLB offers an optional driver-adjustable suspension system. It allows the driver to choose between an extra-supple ride, reducing fatigue on long trips, or a sport setting, which allows maximum control for tricky roads or off-road. The QX50’s suspension doesn’t offer adjustable shock absorbers.

The GLB’s drift compensation steering can automatically compensate for road conditions which would cause the vehicle to drift from side to side, helping the driver to keep the vehicle straight more easily. The QX50 doesn’t offer drift compensation steering.

For a smoother ride and more stable handling, the GLB’s wheelbase is 1.2 inches longer than on the QX50 (111.4 inches vs. 110.2 inches).

The GLB 250 4MATIC handles at .83 G’s, while the QX50 pulls only .81 G’s of cornering force in a Motor Trend skidpad test.

The Mercedes GLB may be more efficient, handle and accelerate better because it weighs about 250 to 350 pounds less than the Infiniti QX50.

The GLB offers optional seating for 7 passengers; the QX50 can only carry 5.

The GLB has 1.5 inches more front legroom and .2 inches more rear headroom than the QX50.

Unlike the driver-only memory seat and mirrors in the QX50 Luxe/Sport, the GLB has standard driver and passenger memory, so that when drivers switch, the memory setting adjusts the driver’s seat, suspension setting, power steering assist, outside mirror angle, climate settings and radio stations and the front passenger seat also adjusts to the new passenger’s preset preferences.

The GLB offers an optional heads-up display that projects speed and navigation instruction readouts in front of the driver’s line of sight, allowing drivers to view information without diverting their eyes from the road. The QX50 doesn’t offer a heads-up display.

The power windows standard on both the GLB and the QX50 have locks to prevent small children from operating them. When the lock on the GLB is engaged the driver can still operate all of the windows, for instance to close one opened by a child. The QX50 prevents the driver from operating the other windows just as it does the other passengers.

The GLB’s rain-sensitive wipers adjust their speed and turn on and off automatically based on the amount of rainfall on the windshield. This allows the driver to concentrate on driving without constantly adjusting the wipers. The QX50’s standard intermittent wipers change speed with vehicle speed, but can’t turn on and off or change speed based on changing rainfall.

Heated windshield washer nozzles are optional on the GLB to prevent washer fluid and nozzles from freezing and help continue to keep the windshield clear in sub-freezing temperatures. The QX50 doesn’t offer heated windshield washer nozzles.

To help drivers avoid possible obstacles, the GLB offers optional cornering lights to illuminate around corners when the turn signals are activated. The QX50 doesn’t offer cornering lights. The GLB also offers optional adaptive headlights to illuminate around corners automatically by reading vehicle speed and steering wheel angle.

The GLB’s standard rear and side view mirrors have an automatic dimming feature. These mirrors can be set to automatically darken quickly when headlights shine on them, keeping following vehicles from blinding or distracting the driver. The QX50 has an automatic rear view mirror, but its side mirrors don’t dim.

The Mercedes GLB has power folding mirrors that offer unparalleled convenience while maneuvering in tight places or parked. With the mirrors folded it’s easier to walk past and help prevent parking damage. The mirrors can be quickly unfolded when the driver is ready to leave. Power folding mirrors are only offered on the QX50 Luxe/Sport.

The Mercedes GLB has a standard Homelink wireless remote control system for garage door operation and device management, conveniently located on the rear view mirror. Homelink® eliminates the need for separate garage door openers and associated risks of losing, breaking, or having dead batteries. Homelink® is only available on the QX50 Luxe/Sport.

The GLB offers an optional 115-volt a/c outlet on the center console, allowing you to recharge a laptop or run small household appliances without special adapters that can break or get misplaced. The QX50 doesn’t offer a house-current electrical outlet.

The GLB’s Active Parking Assist can parallel park by itself, stopping and changing direction automatically. The QX50 doesn’t offer an automated parking system.

The GLB is available in both front-wheel drive and four-wheel drive configurations. The QX50 doesn’t offer a two-wheel drive configuration.

Insurance will cost less for the GLB owner. The Complete Car Cost Guide estimates that insurance for the GLB will cost $300 to $3950 less than the QX50 over a five-year period.

The GLB will cost the buyer less in the long run because of its superior resale value. The IntelliChoice estimates that the GLB will retain 61.32% of its original price after five years, while the QX50 only retains 46.64% to 48.58%.

The Mercedes GLB outsold the Infiniti QX50 by 68% during 2023.