Compare the2026 Audi Q4 e-tron SportbackVS 2026 Acura RDX

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The Q4 e-tron Sportback’s pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The RDX doesn’t offer pre-crash pretensioners.

Both the Q4 e-tron Sportback and RDX have child safety locks to prevent children from opening the rear doors. The Q4 e-tron Sportback 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 RDX’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 Q4 e-tron Sportback 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 RDX 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.

Both the Q4 e-tron Sportback and RDX have rear cross-traffic warning, but the Q4 e-tron Sportback has Automatic Brake Activation (automatically applies the brakes) to better prevent a collision when backing near traffic. The RDX’s Rear Cross Traffic Monitor doesn’t automatically brake.

Both the Q4 e-tron Sportback and the RDX have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, front seatbelt pretensioners, height adjustable front shoulder belts, 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, blind spot warning systems, rearview cameras, rear cross-path warning and available around view monitors.

The Audi Q4 e-tron Sportback weighs 792 to 836 pounds more than the Acura RDX. The NHTSA advises that heavier vehicles are much safer in collisions than their significantly lighter counterparts.

The National Highway Traffic Safety Administration does 35 MPH front crash tests on new vehicles. In this test, results indicate that the Audi Q4 e-tron Sportback is safer than the Acura RDX:

	Q4 e-tron Sportback	RDX
	Driver
STARS	5 Stars	4 Stars
HIC	165	300
Neck Stress	173 lbs.	262 lbs.
Leg Forces (l/r)	72/157 lbs.	328/464 lbs.
	Passenger
STARS	4 Stars	4 Stars
HIC	264	353
Leg Forces (l/r)	14/25 lbs.	362/441 lbs.

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 Q4 e-tron Sportback is 3.7% less likely to roll over than the RDX.

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The Q4 e-tron Sportback’s corrosion warranty is 7 years longer than the RDX’s (12 vs. 5 years).

Audi pays for scheduled maintenance on the Q4 e-tron Sportback for 2 years and 18000 miles longer than Acura pays for maintenance for the RDX (3/30,000 vs. 1/12000).

There are over 12 percent more Audi dealers than there are Acura dealers, which makes it easier should you ever need service under the Q4 e-tron Sportback’s warranty.

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The Q4 e-tron Sportback’s electric motors produces 63 more horsepower (335 vs. 272) and 256 lbs.-ft. more torque (536 vs. 280) than the RDX’s 2.0 turbo 4-cylinder.

As tested in Motor Trend the Audi Q4 e-tron Sportback is faster than the Acura RDX:

	Q4 e-tron Sportback	RDX
Zero to 60 MPH	4.7 sec	7.1 sec
Quarter Mile	13.4 sec	15.5 sec
Speed in 1/4 Mile	98.3 MPH	90.7 MPH

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On the EPA test cycle the Q4 e-tron Sportback gets better mileage than the RDX:

			MPGe
Q4 e-tron Sportback
		Electric Motors	107 city/92 hwy
RDX
			MPG
		2.0 turbo 4-cyl.	21 city/27 hwy
		A-Spec 2.0 turbo 4-cyl.	21 city/26 hwy

The Q4 e-tron Sportback can travel with zero emissions for 258 miles. The RDX can’t move without running its internal combustion engine.

Regenerative brakes improve the Q4 e-tron Sportback’s fuel efficiency by converting inertia back into energy instead of wasting it. The RDX doesn’t offer a regenerative braking system.

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In its Green Vehicle Guide, the U.S. Environmental Protection Agency (EPA) rates the Audi Q4 e-tron Sportback higher (10 out of 10) than the Acura RDX (5). This means the Q4 e-tron Sportback produces up to 19.8 pounds less smog-producing pollutants than the RDX every 15,000 miles.

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For better stopping power the Q4 e-tron Sportback’s front brake rotors are larger than those on the RDX:

	Q4 e-tron Sportback	Q4 e-tron Sportback	RDX
Front Rotors	14.1 inches	15 inches	12.4 inches
Rear Drums	11 inches	13.9 inches	12.2 inches

The Q4 e-tron Sportback stops shorter than the RDX:

	Q4 e-tron Sportback	RDX
70 to 0 MPH	177 feet	180 feet	Car and Driver
60 to 0 MPH	129 feet	133 feet	Motor Trend

© 1999 - 2025Advanta-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. Y5OJJ-6RBQJ 2a06:98c0:3600::103 2025/12/27

For better traction and acceleration, the Q4 e-tron Sportback has larger rear tires than the RDX (255/45R20 vs. 235/55R19).

The Q4 e-tron Sportback’s standard 235/50R20 front and 255/45R20 rear tires provide better handling because they have a lower 50 series front and 45 series rear profile (height to width ratio) that provides a stiffer sidewall than the RDX’s standard 55 series tires. The Q4 e-tron Sportback’s optional 255/40R21 rear tires have a lower 40 series profile than the RDX A-Spec’s 45 series tires.

For better ride, handling and brake cooling the Q4 e-tron Sportback has standard 20-inch wheels. Smaller 19-inch wheels are standard on the RDX. The Q4 e-tron Sportback’s optional 21-inch wheels are larger than the 20-inch wheels on the RDX A-Spec.

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The Q4 e-tron Sportback’s front to rear weight distribution is more even (49% to 51%) than the RDX’s (57% to 43%). This gives the Q4 e-tron Sportback more stable handling and braking.

The Q4 e-tron Sportback executes Motor Trend’s “Figure Eight” maneuver 1.4 seconds quicker than the RDX (26.3 seconds @ .68 average G’s vs. 27.7 seconds @ .62 average G’s).

For better maneuverability, the Q4 e-tron Sportback’s turning circle is 1.2 feet tighter than the RDX’s (37.7 feet vs. 38.9 feet).

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The Q4 e-tron Sportback is 6.8 inches shorter than the RDX, making the Q4 e-tron Sportback easier to handle, maneuver and park in tight spaces.

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The Q4 e-tron Sportback’s standard towing capacity is much higher than the RDX’s (2650 vs. 1500 pounds).

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The Q4 e-tron Sportback’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 RDX’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 Q4 e-tron Sportback to prevent washer fluid and nozzles from freezing and help continue to keep the windshield clear in sub-freezing temperatures. The RDX 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 Q4 e-tron Sportback Premium Plus offers available headlight washers to keep headlight output high. The RDX doesn’t offer headlight washers.

The Q4 e-tron Sportback’s optional rear and 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 RDX has an automatic rear view mirror, but its side mirrors don’t dim.

The Q4 e-tron Sportback has a standard heated steering wheel to take the chill out of steering on extremely cold winter days before the vehicle heater warms up. A heated steering wheel is only available on the RDX Advance.

The Q4 e-tron Sportback Premium Plus’ Park Steering Assist can parallel park or back into a parking spot by itself, starting, stopping and changing direction automatically. The RDX doesn’t offer an automated parking system.

© 1999 - 2025Advanta-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. Y5OJJ-6RBQJ 2a06:98c0:3600::103 2025/12/27

Consumer Reports® recommends both the Audi Q4 e-tron Sportback and the Acura RDX, based on reliability, safety and performance.