Compare the2025 Audi A4 AllroadVS 2025 Infiniti QX55

The A4 Allroad’s pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The QX55 doesn’t offer pre-crash pretensioners.

Both the A4 Allroad and QX55 have child safety locks to prevent children from opening the rear doors. The A4 Allroad 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.

The A4 Allroad has a standard Audi Backguard System, which use a specially designed headrest to protect the driver and front passenger from whiplash. During a rear-end collision, the Audi Backguard System moves the headrests forward to prevent neck and spine injuries. At the same time the pretensioning seatbelts fire, removing slack from the belts. The QX55 doesn’t offer a whiplash protection system.

The A4 Allroad has a standard Secondary Collision Brake Assist, which automatically applies the brakes in the event of a crash to help prevent secondary collisions and prevent further injuries. The QX55 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.

When descending a steep, off-road slope, the A4 Allroad’s standard Hill Descent Control allows you to creep down safely. The QX55 doesn’t offer Hill Descent Control.

Both the A4 Allroad and QX55 offer rear cross-traffic warning, but the A4 Allroad with Rear Cross-Traffic Assist also has Automatic Brake Activation (automatically applies the brakes) to better prevent a collision when backing near traffic. The QX55’s Rear Cross Traffic Alert doesn’t automatically brake.

Both the A4 Allroad and the QX55 have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, front and rear seatbelt pretensioners, height adjustable front shoulder belts, plastic fuel tanks, four-wheel antilock brakes, all wheel drive, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, lane departure warning systems, rearview cameras, available blind spot warning systems and around view monitors.

The A4 Allroad’s corrosion warranty is 5 years longer than the QX55’s (12 vs. 7 years).

There are over 51 percent more Audi dealers than there are Infiniti dealers, which makes it much easier should you ever need service under the A4 Allroad’s warranty.

The Audi A4 Allroad’s engine uses a cast iron block for durability, while the QX55’s engine uses an aluminum block. Aluminum engine blocks are much more prone to warp and crack at high temperatures than cast iron.

To reliably power the ignition and other systems and to recharge the battery, the A4 Allroad has a standard 150-amp alternator. The QX55’s 130-amp alternator isn’t as powerful.

On the EPA test cycle the A4 Allroad gets better fuel mileage than the QX55 (23 city/30 hwy vs. 22 city/28 hwy).

Regenerative brakes improve the A4 Allroad’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 A4 Allroad’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 QX55 doesn’t offer an automatic engine start/stop system.

To lower fuel costs and make buying fuel easier, the Audi A4 Allroad uses regular unleaded gasoline (premium recommended for maximum performance). The QX55 requires premium, which can cost on average about 84.9 cents more per gallon.

The A4 Allroad’s launch control uses engine electronics to hold engine RPM’s precisely in order to provide the most stable and rapid acceleration possible, using all of the available traction. The QX55 doesn’t offer launch control.

For better stopping power the A4 Allroad’s brake rotors are larger than those on the QX55:

The A4 Allroad stops shorter than the QX55:

The A4 Allroad 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.

The A4 Allroad has standard front and rear gas-charged shocks for better control over choppy roads. The QX55’s suspension doesn’t offer gas-charged shocks.

The A4 Allroad has a standard 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. The QX55’s suspension doesn’t offer adjustable shock absorbers.

The A4 Allroad Premium Plus executes Motor Trend’s “Figure Eight” maneuver quicker than the QX55 Essential (26.3 seconds @ .69 average G’s vs. 27 seconds @ .65 average G’s).

The Audi A4 Allroad may be more efficient, handle and accelerate better because it weighs about 200 to 300 pounds less than the Infiniti QX55.

The A4 Allroad has 1.7 inches more front legroom and .5 inches more rear headroom than the QX55.

The A4 Allroad has a larger cargo volume with its rear seat folded than the QX55 with its rear seat folded (58.4 vs. 54.1 cubic feet).

A low lift-over trunk design makes loading and unloading the A4 Allroad easier. The A4 Allroad’s trunk lift-over height is 26.1 inches, while the QX55’s liftover is 29.9 inches.

The A4 Allroad has a 3968 lbs. towing capacity. The QX55 has no towing capacity.

The engine in the A4 Allroad is mounted longitudinally (North-South), instead of sideways, as in the QX55. This makes it easier to service and maintain, because the accessory belts are in front.

The power windows standard on both the A4 Allroad and the QX55 have locks to prevent small children from operating them. When the lock on the A4 Allroad 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.

The A4 Allroad’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 QX55’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 standard on the A4 Allroad to prevent washer fluid and nozzles from freezing and help continue to keep the windshield clear in sub-freezing temperatures. The QX55 doesn’t offer heated windshield washer nozzles.

In poor weather, headlights can lose their effectiveness as grime builds up on their lenses. This can reduce visibility without the driver realizing. The A4 Allroad Prestige has standard headlight washers to keep headlight output high. The QX55 doesn’t offer headlight washers.

Manual rear side window sunshades are available in the A4 Allroad to help block heat and glare for the rear passengers. The QX55 doesn’t offer rear side window sunshades.

The A4 Allroad’s standard rear view mirror and optional 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 QX55 has an automatic rear view mirror, but its side mirrors don’t dim.

Both the Audi A4 Allroad and Infiniti QX55 offer exterior mirrors that can be folded to provide convenience. The A4 Allroad offers optional 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 A4 Allroad has a standard heated steering wheel to take the chill out of steering on extremely cold winter days before the car heater warms up. A heated steering wheel is only available on the QX55 Essential/Sensory.

The A4 Allroad Prestige’s Park Assist can parallel park or back into a parking spot by itself, with the driver only controlling speed with the brake pedal. The QX55 doesn’t offer an automated parking system.

Insurance will cost less for the A4 Allroad owner. The Complete Car Cost Guide estimates that insurance for the A4 Allroad will cost $230 less than the QX55 over a five-year period.

The A4 Allroad will cost the buyer less in the long run because of its superior resale value. The IntelliChoice estimates that the A4 Allroad will retain 50.67% to 52.19% of its original price after five years, while the QX55 only retains 46.84% to 46.91%.

The Audi A4/S4 outsold the Infiniti QX55 by almost three to one during 2023.