Compare the2025 Kia Sorento HybridVS 2025 Infiniti QX55

Safety
Warranty
Reliability
Fuel Economy and Range
Environmental Friendliness
Brakes and Stopping
Tires and Wheels
Suspension and Handling
Passenger Space
Cargo Capacity
Towing
Ergonomics
Model Availability
Recommendations

Safety

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Both the Sorento Hybrid and QX55 have child safety locks to prevent children from opening the rear doors. The Sorento Hybrid has power child safety locks, allowing the driver to activate and deactivate them from the driver's seat and to know when they're engaged. The QX55’s child locks have to be individually engaged at each rear door with a manual switch. The driver can’t know the status of the locks without opening the doors and checking them.

When descending a steep, off-road slope, the Sorento Hybrid’s standard Downhill Brake Control allows you to creep down safely. The QX55 doesn’t offer Downhill Brake Control.

Both the Sorento Hybrid and QX55 have rear cross-traffic warning, but the Sorento Hybrid has Rear Cross-Traffic Collision-Avoidance Assist (automatically applies the brakes) to better prevent a collision when backing near traffic. The QX55’s Rear Cross Traffic Alert doesn’t automatically brake.

The Sorento Hybrid’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 QX55 doesn’t offer a driver alert monitor.

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

The National Highway Traffic Safety Administration does 35 MPH front crash tests on new vehicles. In this test, results indicate that the Kia Sorento Hybrid is safer than the Infiniti QX55:

	Sorento Hybrid	QX55
	Passenger
STARS	4 Stars	4 Stars
Chest Compression	.5 inches	1.2 inches
Neck Stress	159 lbs.	219 lbs.
Leg Forces (l/r)	81/191 lbs.	452/534 lbs.

New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.

Side impacts caused 23% of all road fatalities in 2018, down from 29% in 2003, when the Insurance Institute for Highway Safety introduced its side barrier test. In order to continue improving vehicle safety, the IIHS has started using a more severe side impact test: 37 MPH (up from 31 MPH), with a 4180-pound barrier (up from 3300 pounds). The results of this newly developed test demonstrates that the Kia Sorento Hybrid is safer than the QX55:

	Sorento Hybrid	QX55
Overall Evaluation	GOOD	ACCEPTABLE
Structure	GOOD	MARGINAL
	Driver Injury Measures
Head/Neck	GOOD	GOOD
Head Injury Criterion	64	141
Neck Compression	-89 lbs.	89 lbs.
Torso	GOOD	ACCEPTABLE
Shoulder Deflection	.71 in	1.06 in
Torso Max Deflection	1.14 in	1.73 in
Torso Deflection Rate	7 MPH	9 MPH
Pelvis	ACCEPTABLE	MARGINAL
Pelvis Force	959 lbs.	1316 lbs.
Head Protection	GOOD	GOOD
	Passenger Injury Measures
Head/Neck	GOOD	GOOD
Neck Compression	-67 lbs.	89 lbs.
Torso	GOOD	GOOD
Shoulder Deflection	.55 in	.67 in
Shoulder Force	134 lbs.	201 lbs.
Torso Max Deflection	1.18 in	1.42 in
Torso Deflection Rate	4 MPH	7 MPH
Pelvis	GOOD	GOOD
Head Protection	GOOD	GOOD

The Kia Sorento Hybrid achieved a “Top Safety Pick” rating from the Insurance Institute for Highway Safety (IIHS) for the 2024 model year. This recognition was based on its impressive performance in the small overlap frontal crash test, updated side impact crash test, headlight evaluations, and pedestrian crash prevention testing. The QX55 is not a “Top Safety Pick” for 2024.

Warranty

The Sorento Hybrid comes with a full 5-year/60,000-mile basic warranty, which covers the entire truck and includes 24-hour roadside assistance. The QX55’s 4-year/60,000-mile basic warranty expires 1 year sooner.

Kia’s powertrain warranty covers the Sorento Hybrid 4 years and 30,000 miles longer than Infiniti covers the QX55. Any repair needed on the engine, transmission, axles, joints or driveshafts is fully covered for 10 years or 100,000 miles. Coverage on the QX55 ends after only 6 years or 70,000 miles.

There are almost 4 times as many Kia dealers as there are Infiniti dealers, which makes it much easier should you ever need service under the Sorento Hybrid’s warranty.

Reliability

J.D. Power and Associates’ 2024 Initial Quality Study of new car owners surveyed provide the statistics that show that Kia vehicles are better in initial quality than Infiniti vehicles. J.D. Power ranks Kia fourth in initial quality, above the industry average. With 24 more problems per 100 vehicles, Infiniti is ranked 14th.

J.D. Power and Associates’ 2024 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Kia vehicles are more reliable than Infiniti vehicles. J.D. Power ranks Kia above average in long-term dependability. With 3 more problems per 100 vehicles in the first three years of ownership, Infiniti is rated below average.

From surveys of all its subscribers, Consumer Reports’ January 2024 Auto Issue reports that Kia vehicles are more reliable than Infiniti vehicles. Consumer Reports ranks Kia 3 places higher in reliability than Infiniti.

Fuel Economy and Range

On the EPA test cycle the Sorento Hybrid gets better mileage than the QX55:

			MPG
Sorento Hybrid
	FWD	1.6 turbo 4-cyl. Hybrid	36 city/36 hwy
	AWD	1.6 turbo 4-cyl. Hybrid	34 city/34 hwy
QX55
	AWD	2.0 turbo 4-cyl.	22 city/28 hwy

Regenerative brakes improve the Sorento Hybrid’s fuel efficiency by converting inertia back into energy instead of wasting it. The QX55 doesn’t offer a regenerative braking system.

In heavy traffic or at stoplights the Sorento Hybrid’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. The QX55 doesn’t offer an automatic engine start/stop system.

To lower fuel costs and make buying fuel easier, the Kia Sorento Hybrid uses regular unleaded gasoline. The QX55 requires premium, which can cost on average about 84.9 cents more per gallon.

The Sorento Hybrid has 1.7 gallons more fuel capacity than the QX55 (17.7 vs. 16 gallons), for longer range between fill-ups.

Environmental Friendliness

In its Green Vehicle Guide, the U.S. Environmental Protection Agency (EPA) rates the Kia Sorento Hybrid higher (6 out of 10) than the Infiniti QX55 (5). This means the Sorento Hybrid produces up to 6.9 pounds less smog-producing pollutants than the QX55 every 15,000 miles.

Brakes and Stopping

The Sorento Hybrid stops shorter than the QX55:

	Sorento Hybrid	QX55
60 to 0 MPH	121 feet	122 feet	Motor Trend

Tires and Wheels

The Sorento Hybrid has a standard space-saver spare tire so you can replace a flat tire and drive to have the flat repaired or replaced. A spare tire isn’t available on the QX55; it requires you to depend on its run-flat tires, which limits mileage and speed before they are repaired. If a run-flat is damaged beyond repair by a road hazard your vehicle will have to be towed.

Suspension and Handling

For better handling and stability, the track (width between the wheels) on the Sorento Hybrid is .4 inches wider in the front and 1.4 inches wider in the rear than on the QX55.

Passenger Space

The Sorento Hybrid has standard seating for 6 passengers; the QX55 can only carry 5.

The Sorento Hybrid has 5.1 cubic feet more passenger volume than the QX55 (105.3 vs. 100.2).

The Sorento Hybrid has .4 inches more front headroom, 1.8 inches more front legroom, 1.2 inches more front shoulder room, 2.2 inches more rear headroom, 2 inches more rear legroom, 1.3 inches more rear hip room and 1 inch more rear shoulder room than the QX55.

Cargo Capacity

The Sorento Hybrid’s cargo area provides more volume than the QX55.

	Sorento Hybrid	QX55
Third Seat Folded	38.5 cubic feet	n/a
Third Seat Removed	45 cubic feet	26.9 cubic feet
Second Seat Folded	75.5 cubic feet	54.1 cubic feet

Towing

The Sorento Hybrid has a 2000 lbs. towing capacity. The QX55 has no towing capacity.

Standard Trailer Stability Assist on the Sorento Hybrid uses the Electronic Stability Control sensors to detect trailer sway, then uses individual brakes to counteract any swaying and help keep the tow vehicle and trailer steady. The QX55 doesn’t offer electronic trailer sway control.

Ergonomics

The power windows standard on both the Sorento Hybrid and the QX55 have locks to prevent small children from operating them. When the lock on the Sorento Hybrid is engaged the driver can still operate all of the windows, for instance to close one opened by a child. The QX55 prevents the driver from operating the other windows just as it does the other passengers.

Manual rear side window sunshades are available in the Sorento Hybrid to help block heat and glare for the rear passengers. The QX55 doesn’t offer rear side window sunshades.

Both the Kia Sorento Hybrid and Infiniti QX55 offer exterior mirrors that can be folded to provide convenience. The Sorento Hybrid offers available power folding mirrors, which allow for easy, one-touch folding or unfolding at the driver’s discretion. This provides added convenience when maneuvering or parking, as well as when walking past the parked vehicle. In comparison, the QX55’s foldable mirrors are manual, requiring the driver to get out and physically fold them once parked and unfold them before getting in.

The Sorento Hybrid SX Prestige has a 115-volt a/c outlet in the cargo area, allowing you to recharge a laptop or run small household appliances without special adapters that can break or get misplaced. The QX55 doesn’t offer a house-current electrical outlet.

Model Availability

The Sorento Hybrid is available in both front-wheel drive and four-wheel drive configurations. The QX55 doesn’t offer a two-wheel drive configuration.

Recommendations

Consumer Reports® recommends the Kia Sorento Hybrid, based on reliability, safety and performance.

The Kia Sorento outsold the Infiniti QX55 by over 16 to one during 2023.

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