Compare the2023 Infiniti QX50VS 2022 Lexus RX

In the past twenty years hundreds of infants and young children have died after being left in vehicles, usually by accident. When turning the vehicle off, drivers of the QX50 are reminded to check the back seat if they opened the rear door before starting out. The RX doesn’t offer a back seat reminder.

Both the QX50 and the RX 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, 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 Infiniti QX50 is safer than the Lexus RX:

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 Infiniti QX50 is safer than the Lexus RX:

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

Instrumented handling tests conducted by the National Highway Traffic Safety Administration and analysis of its dimensions indicate that the QX50 is .9% to 3.2% less likely to roll over than the RX.

The QX50 comes with a full 4-year/60,000-mile basic warranty, which covers the entire truck and includes 24-hour roadside assistance. The RX’s 4-year/50,000-mile basic warranty expires 10,000 miles sooner.

The QX50’s corrosion warranty is 1 year longer than the RX’s (7 vs. 6 years).

Infiniti pays for scheduled maintenance on the QX50 for 2 years and 26000 miles longer than Lexus pays for maintenance for the RX (3/36,000 vs. 1/10,000).

The QX50’s 2.0 turbo 4-cylinder produces 12 lbs.-ft. more torque (280 vs. 268) than the RX 350’s standard 3.5 DOHC V6. The QX50’s 2.0 turbo 4-cylinder produces 280 lbs.-ft. more torque (280 vs. ) than the RX 450h’s standard 3.5 DOHC V6 hybrid.

As tested in Motor Trend the Infiniti QX50 is faster than the Lexus RX:

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

The QX50 stops shorter than the RX:

For better traction, the QX50 Sport/Sensory/Autograph’s tires are larger than the largest tires available on the RX (255/45R20 vs. 235/65R18).

The QX50’s standard tires provide better handling because they have a lower 55 series profile (height to width ratio) that provides a stiffer sidewall than the RX’s standard 65 series tires. The QX50 Sport/Sensory/Autograph’s tires have a lower 45 series profile than the RX’s optional 55 series tires.

For better ride, handling and brake cooling the QX50 has standard 19-inch wheels. Smaller 18-inch wheels are standard on the RX.

The QX50 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 RX 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 QX50 can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The RX doesn’t offer run-flat tires.

The QX50 AWD handles at .84 G’s, while the RX 450h pulls only .78 G’s of cornering force in a Motor Trend skidpad test.

The QX50 AWD executes Motor Trend’s “Figure Eight” maneuver quicker than the RX 450h (26.7 seconds @ .66 average G’s vs. 27.5 seconds @ .65 average G’s).

For better maneuverability, the QX50’s turning circle is 2.4 feet tighter than the RX’s (36.4 feet vs. 38.8 feet).

For greater off-road capability the QX50 has a greater minimum ground clearance than the RX (8.6 vs. 8.2 inches), allowing the QX50 to travel over rougher terrain without being stopped or damaged.

The Infiniti QX50 may be more efficient, handle and accelerate better because it weighs about 350 to 550 pounds less than the Lexus RX.

The QX50 is 7.8 inches shorter than the RX, making the QX50 easier to handle, maneuver and park in tight spaces.

The QX50 uses computer-generated active noise cancellation to help remove annoying noise and vibration from the passenger compartment, especially at low frequencies. The RX doesn’t offer active noise cancellation.

The QX50 has 1.6 inches more front headroom, .1 inches more front shoulder room and .7 inches more rear legroom than the RX.

The QX50 has a much larger cargo volume with its rear seat up than the RX with its rear seat up (31.4 vs. 16 cubic feet). The QX50 has a much larger cargo volume with its rear seat folded than the RX with its rear seat folded (65.1 vs. 32.6 cubic feet).

To quickly and conveniently keep personal devices charged without cables tangling and wearing out, the Infiniti QX50 has a standard wireless phone charging system (Qi) for the front seat. Wireless charging costs extra on the RX.

According to The Car Book by Jack Gillis, the QX50 is less expensive to operate than the RX because it costs $309 less to do the manufacturer’s suggested maintenance for 50,000 miles. Typical repairs cost much less on the QX50 than the RX, including $390 less for a water pump, $6 less for a muffler, $58 less for front brake pads, $181 less for a starter, $1224 less for a timing belt/chain and $804 less for a power steering pump.