Compare the2025 Infiniti QX55VS 2025 Acura ADX

To provide maximum traction and stability on all roads, All-Wheel Drive is standard on the QX55. But it costs extra on the ADX.

Both the QX55 and the ADX 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, 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 and available around view monitors.

The Infiniti QX55 weighs 459 to 754 pounds more than the Acura ADX. The NHTSA advises that heavier vehicles are much safer in collisions than their significantly lighter counterparts.

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 ADX’s 4-year/50,000-mile basic warranty expires 10,000 miles sooner.

The QX55’s corrosion warranty is 2 years longer than the ADX’s (7 vs. 5 years).

Infiniti pays for scheduled maintenance on the QX55 for 2 years and 33000 miles longer than Acura pays for maintenance for the ADX (3/45000 vs. 1/12000).

J.D. Power and Associates’ 2024 Initial Quality Study of new car owners surveyed provide the statistics that show that Infiniti vehicles are better in initial quality than Acura vehicles. J.D. Power ranks Infiniti above average in initial quality. With 6 more problems per 100 vehicles, Acura is rated lower.

The QX55’s 2.0 turbo 4-cylinder produces 78 more horsepower (268 vs. 190) and 101 lbs.-ft. more torque (280 vs. 179) than the ADX’s 1.5 turbo 4-cylinder.

The QX55 has 2 gallons more fuel capacity than the ADX (16 vs. 14 gallons), for longer range between fill-ups.

For better stopping power the QX55’s front brake rotors are larger than those on the ADX:

The QX55’s standard front and rear disc brakes are vented to help dissipate heat for shorter stops with less fading. The rear discs on the ADX are solid, not vented.

For better traction, the QX55 has larger tires than the ADX (255/45R20 vs. 225/55R18). The QX55’s tires are larger than the largest tires available on the ADX (255/45R20 vs. 235/45R19).

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 ADX’s standard 55 series tires.

For better ride, handling and brake cooling the QX55 has standard 20-inch wheels. Smaller 18-inch wheels are standard on the ADX. The ADX’s largest wheels are only 19-inches.

Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires standard on the QX55 can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The ADX doesn’t offer run-flat tires.

For a smoother ride and more stable handling, the QX55’s wheelbase is 5.7 inches longer than on the ADX (110.2 inches vs. 104.5 inches).

For better handling and stability, the track (width between the wheels) on the QX55 is 1.8 inches wider in the front than on the ADX.

For better maneuverability, the QX55’s turning circle is .6 feet tighter than the ADX’s (36.4 feet vs. 37 feet).

For greater off-road capability the QX55 has a 1.3 inches greater minimum ground clearance than the ADX (8.6 vs. 7.3 inches), allowing the QX55 to travel over rougher terrain without being stopped or damaged.

The QX55 has 2.9 cubic feet more passenger volume than the ADX (100.2 vs. 97.3).

The QX55 has 1.5 inches more front headroom, 1.6 inches more front hip room, 1.3 inches more front shoulder room, 1 inch more rear legroom, 6.4 inches more rear hip room and 1.9 inches more rear shoulder room than the ADX.

For enhanced passenger comfort on long trips the QX55’s rear seats recline. The ADX’s rear seats don’t recline.

The QX55 has a much larger cargo volume than the ADX with its rear seat up (26.9 vs. 24.4 cubic feet).

Pulling a handle automatically lowers the QX55’s rear seats, to make changing between passengers and cargo easier. The ADX doesn’t offer automatic folding seats.

The QX55 uses gas struts to support the hood for easier service access. The ADX uses a prop rod to support its heavy hood. It takes two hands to open the hood and set the prop rod, the prop rod gets in the way during maintenance and service, and the prop rod could be knocked out, causing the heavy hood to fall on the person maintaining or servicing the car.

The QX55’s standard Entry/Exit Assist raises the steering wheel and glides the driver’s seat back, making it easier for the driver to get in and out. An easy entry system costs extra on the ADX, and is not available on all models.

The QX55 Sensory has a standard heads-up display that projects speed, navigation instruction and driver assistance information readouts in front of the driver’s line of sight, allowing drivers to view information without diverting their eyes from the road. The ADX doesn’t offer a heads-up display.

The QX55’s front and rear power windows all open or close fully with one touch of the switches, making it more convenient at drive-up windows and toll booths, or when talking with someone outside the car. The ADX’s standard passenger windows don’t open or close automatically. With the ADX A-Spec’s power windows, only the front windows open or close automatically.

If the windows are left open on the QX55 the driver can close them all at the outside door handle. On a hot day the driver can lower the windows from a distance using the keyless remote. The driver of the ADX can only close the windows from inside the vehicle, with the ignition on.

The QX55’s standard Infiniti Intelligent Key allow you to unlock the doors from any outside door handle, open the cargo door, and start the engine, all without removing the key from the pocket or purse. Keyless Access System standard on the ADX doesn’t offer a sensor on the rear doors, so you’ll have to reach a front handle to unlock the rear door.

To help drivers see further while navigating curves, the QX55 Essential/Sensory has standard adaptive headlights to illuminate around corners automatically by reading vehicle speed and steering wheel angle. The ADX doesn’t offer cornering lights.

Both the QX55 and the ADX have standard heated front seats. The QX55 Sensory also has standard heated rear seats to keep those passengers extremely comfortable in the winter. Heated rear seats aren’t available in the ADX.

Compared to the Acura ADX, the Infiniti QX55 eliminates the need for separate garage door openers and associated risks of losing, breaking, or having dead batteries with its standard integrated Homelink® universal remote controlled from the rear view mirror.