Compare the2024 Lexus UXVS 2023 Infiniti QX50

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Using vehicle speed sensors and seat sensors, smart airbags in the UX deploy with different levels of force or don’t deploy at all to help better protect passengers of all sizes in different collisions. The UX’s side airbags will shut off if a child is leaning against the door. The QX50’s side airbags don’t have smart features and will always deploy full force.

The UX has standard Whiplash Injury Lessening Front Seatbacks, which use a specially designed seat to protect the driver and front passenger from whiplash. During a rear-end collision, the Whiplash Injury Lessening Front Seatbacks system allows the backrest to travel backwards to cushion the occupants and the headrests move forward to prevent neck and spine injuries. The QX50 doesn’t offer a whiplash protection system.

The UX has a standard Secondary Collision Brake, which automatically applies the brakes in the event of a crash to help prevent secondary collisions and prevent further injuries. The QX50 doesn’t offer a post collision braking system: in the event of a collision that triggers the airbags, more collisions are possible without the protection of airbags that may have already deployed.

The UX’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 UX and the QX50 have standard driver and passenger frontal airbags, front and rear side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, front and rear seatbelt pretensioners, front wheel drive, 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 rear parking sensors.

The National Highway Traffic Safety Administration does 35 MPH front crash tests on new vehicles. In this test, results indicate that the Lexus UX is safer than the Infiniti QX50:

	UX	QX50
	Driver
STARS	4 Stars	4 Stars
HIC	116	236
Neck Compression	17 lbs.	42 lbs.
	Passenger
STARS	4 Stars	4 Stars
HIC	290	333
Leg Forces (l/r)	345/566 lbs.	504/622 lbs.

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

The National Highway Traffic Safety Administration does side impact tests on new vehicles. In this test, which crashes the vehicle into a flat barrier at 38.5 MPH and into a post at 20 MPH, results indicate that the Lexus UX is safer than the Infiniti QX50:

	UX	QX50
	Front Seat
STARS	5 Stars	5 Stars
HIC	52	98
Chest Movement	.8 inches	1 inches
Abdominal Force	149 lbs.	151 lbs.
	Into Pole
STARS	5 Stars	5 Stars
Max Damage Depth	12 inches	17 inches
HIC	292	333

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 Lexus UX is safer than the QX50:

	UX	QX50
Overall Evaluation	GOOD	ACCEPTABLE
Structure	GOOD	MARGINAL
	Driver Injury Measures
Head/Neck	GOOD	GOOD
Neck Compression	67 lbs.	89 lbs.
Torso	GOOD	ACCEPTABLE
Shoulder Deflection	.83 in	1.06 in
Torso Max Deflection	1.02 in	1.73 in
Torso Deflection Rate	7 MPH	9 MPH
Pelvis	GOOD	MARGINAL
Pelvis Force	892 lbs.	1316 lbs.
Head Protection	GOOD	GOOD
	Passenger Injury Measures
Head/Neck	GOOD	GOOD
Neck Compression	67 lbs.	89 lbs.
Torso	GOOD	GOOD
Torso Deflection Rate	6 MPH	7 MPH
Head Protection	GOOD	GOOD

For its performance in IIHS driver-side and passenger-side small overlap frontal, moderate overlap frontal, updated side impact, headlight, daytime pedestrian crash prevention, and nighttime pedestrian crash prevention testing, the Insurance Institute for Highway Safety grants the UX its highest rating: “Top Safety Pick Plus” for 2023, a rating granted to only 29 vehicles tested by the IIHS. The QX50 has not been fully tested, yet.

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There are over 20 percent more Lexus dealers than there are Infiniti dealers, which makes it easier should you ever need service under the UX’s warranty.

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The battery on the UX is in the trunk, which protects it from hot underhood temperatures that can degrade battery life. By keeping the UX’s battery 20 to 30 degrees cooler, its life is increased by years. The QX50’s battery is in the hot engine compartment.

A reliable vehicle saves its owner time, money and trouble. Nobody wants to be stranded or have to be without a vehicle while it’s being repaired. Consumer Reports rates the UX’s reliability 14 points higher than the QX50.

J.D. Power and Associates rated the UX second among small premium suvs in their 2023 Initial Quality Study. The QX50 isn’t in the top three in its category.

J.D. Power and Associates’ 2023 Initial Quality Study of new car owners surveyed provide the statistics that show that Lexus vehicles are better in initial quality than Infiniti vehicles. J.D. Power ranks Lexus above average in initial quality. With 41 more problems per 100 vehicles, Infiniti is rated below average.

J.D. Power and Associates’ 2022 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Lexus vehicles are more reliable than Infiniti vehicles. J.D. Power ranks Lexus above average in long-term dependability. With 33 more problems per 100 vehicles in the first three years of ownership, Infiniti is rated below average.

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

			MPG
UX
	FWD	2.0 4-cyl. Hybrid	43 city/41 hwy
	AWD	2.0 4-cyl. Hybrid	41 city/38 hwy
QX50
	FWD	2.0 turbo 4-cyl.	23 city/29 hwy
	AWD	2.0 turbo 4-cyl.	22 city/28 hwy

Regenerative brakes improve the UX’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 UX’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 QX50 doesn’t offer an automatic engine start/stop system.

To lower fuel costs and make buying fuel easier, the Lexus UX uses regular unleaded gasoline. The QX50 requires premium, which can cost on average about 82.8 cents more per gallon.

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In its Green Vehicle Guide, the U.S. Environmental Protection Agency (EPA) rates the Lexus UX higher (7 out of 10) than the Infiniti QX50 (6). This means the UX produces up to 1.1 pounds less smog-producing pollutants than the QX50 every 15,000 miles.

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The UX’s tires provide better handling because they have a lower 50 series profile (height to width ratio) that provides a stiffer sidewall than the QX50’s standard 55 series tires.

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

For better maneuverability, the UX’s turning circle is 2.2 feet tighter than the QX50’s (34.2 feet vs. 36.4 feet).

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The Lexus UX may be more efficient, handle and accelerate better because it weighs about 350 to 600 pounds less than the Infiniti QX50.

The UX is 7.7 inches shorter than the QX50, making the UX easier to handle, maneuver and park in tight spaces.

© 1999 - 2024Advanta-STAR Automotive Research, all rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America (“Advanta-STAR”). If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it, or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. Removal of this watermark/notification without prior written license and approval received from Advanta-STAR is an agreement, understanding, and/or stipulation by the person(s), entities, agents, attorneys, and any other persons involved in the removal of this watermark/notification (including but not limited to Search Optics, LLC and any and all parent entities, sister entities, and subsidiary entities of Search Optics, LLC and/or any other entity, agent, attorney, and persons related in any manner to Search Optics, LLC) to: 1) an agreed upon amount of liquidated monetary damages of a minimum of $1,250,000.00 US Dollars in favor of Advanta-STAR; 2) the jurisdiction and enforcement of any legal claims associated with this matter asserted by Advanta-STAR in the United States Federal District Court in Portand, Oregon; and 3) service of process of any legal claims asserted by Advanta-STAR associated with this matter may be accomplished by First-Class Postage by the United States Postal Service or comparable service. XPYNN-M34HG 2a06:98c0:3600::103 2024/12/21

J.D. Power and Associates surveys of service recipients show that Lexus service is better than Infiniti. J.D. Power ranks Lexus first in service department satisfaction. With a 35% lower rating, Infiniti is ranked 9th.

© 1999 - 2024Advanta-STAR Automotive Research, all rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America (“Advanta-STAR”). If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it, or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. Removal of this watermark/notification without prior written license and approval received from Advanta-STAR is an agreement, understanding, and/or stipulation by the person(s), entities, agents, attorneys, and any other persons involved in the removal of this watermark/notification (including but not limited to Search Optics, LLC and any and all parent entities, sister entities, and subsidiary entities of Search Optics, LLC and/or any other entity, agent, attorney, and persons related in any manner to Search Optics, LLC) to: 1) an agreed upon amount of liquidated monetary damages of a minimum of $1,250,000.00 US Dollars in favor of Advanta-STAR; 2) the jurisdiction and enforcement of any legal claims associated with this matter asserted by Advanta-STAR in the United States Federal District Court in Portand, Oregon; and 3) service of process of any legal claims asserted by Advanta-STAR associated with this matter may be accomplished by First-Class Postage by the United States Postal Service or comparable service. XPYNN-M34HG 2a06:98c0:3600::103 2024/12/21

In poor weather, headlights can lose their effectiveness as grime builds up on their lenses. This can reduce visibility without the driver realizing. The UX offers available headlight washers to keep headlight output high. The QX50 doesn’t offer headlight washers.

© 1999 - 2024Advanta-STAR Automotive Research, all rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America (“Advanta-STAR”). If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it, or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. Removal of this watermark/notification without prior written license and approval received from Advanta-STAR is an agreement, understanding, and/or stipulation by the person(s), entities, agents, attorneys, and any other persons involved in the removal of this watermark/notification (including but not limited to Search Optics, LLC and any and all parent entities, sister entities, and subsidiary entities of Search Optics, LLC and/or any other entity, agent, attorney, and persons related in any manner to Search Optics, LLC) to: 1) an agreed upon amount of liquidated monetary damages of a minimum of $1,250,000.00 US Dollars in favor of Advanta-STAR; 2) the jurisdiction and enforcement of any legal claims associated with this matter asserted by Advanta-STAR in the United States Federal District Court in Portand, Oregon; and 3) service of process of any legal claims asserted by Advanta-STAR associated with this matter may be accomplished by First-Class Postage by the United States Postal Service or comparable service. XPYNN-M34HG 2a06:98c0:3600::103 2024/12/21

Consumer Reports® recommends both the Lexus UX and the Infiniti QX50, based on reliability, safety and performance.