Compare the2022 BMW iXVS 2022 Acura RDX

The iX’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 iX and RDX have child safety locks to prevent children from opening the rear doors. The iX 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 iX’s standard pretensioning seatbelts also sense rear collisions and remove slack from the front seatbelts to help protect the occupants from whiplash and other injuries. The RDX doesn’t offer a whiplash protection system.

The iX has a standard PostCrash iBrake, 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.

Over 200 people are killed each year when backed over by motor vehicles. The iX has standard Active Park Distance Control that uses rear sensors to monitor and automatically apply the brakes to prevent a rear collision. The RDX doesn’t offer backup collision prevention brakes.

To provide maximum traction and stability on all roads, Full-Time Four-Wheel Drive is standard on the iX. But it costs extra on the RDX.

The iX’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 RDX doesn’t offer a driver alert monitor.

Both the iX and the RDX have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, front seatbelt pretensioners, 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 BMW iX weighs 1579 to 1981 pounds more than the Acura RDX. The NHTSA advises that heavier vehicles are much safer in collisions than their significantly lighter counterparts.

The iX’s corrosion warranty is 7 years longer than the RDX’s (12 vs. 5 years).

BMW pays for scheduled maintenance on the iX for 3 years and 36,000 miles. BMW will pay for oil changes, lubrication and any other required maintenance. Acura doesn’t pay scheduled maintenance for the RDX.

There are over 29 percent more BMW dealers than there are Acura dealers, which makes it easier should you ever need service under the iX’s warranty.

J.D. Power and Associates’ 2021 Initial Quality Study of new car owners surveyed provide the statistics that show that BMW vehicles are better in initial quality than Acura vehicles. J.D. Power ranks BMW 20th in initial quality. With 34 more problems per 100 vehicles, Acura is ranked 26th.

From surveys of all its subscribers, Consumer Reports’ January 2021 Auto Issue reports that BMW vehicles are more reliable than Acura vehicles. Consumer Reports ranks BMW 16 places higher in reliability than Acura.

The iX xDrive50’s standard electric motors produce 244 more horsepower (516 vs. 272) and 284 lbs.-ft. more torque (564 vs. 280) than the RDX’s 2.0 turbo 4-cylinder. The iX M60’s standard electric motors produce 338 more horsepower (610 vs. 272) and 531 lbs.-ft. more torque (811 vs. 280) than the RDX’s 2.0 turbo 4-cylinder.

On the EPA test cycle the iX gets better mileage than the RDX:

The iX’s EPA estimated pure electric driving range is 305 to 324 miles on a full charge (depending on wheels). The RDX has to run its internal combustion engine to move.

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

In its Green Vehicle Guide, the U.S. Environmental Protection Agency (EPA) rates the BMW iX higher (10 out of 10) than the Acura RDX (6). This means the iX produces up to 12.9 pounds less smog-producing pollutants than the RDX every 15,000 miles.

For better stopping power the iX’s brake rotors are larger than those on the RDX:

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

For better traction, the iX’s optional tires are larger than the largest tires available on the RDX (275/40R22 vs. 255/40R20).

For better ride, handling and brake cooling the iX has standard 20-inch wheels. Smaller 19-inch wheels are standard on the RDX. The iX’s optional 22-inch wheels are larger than the 20-inch wheels on the RDX A-Spec.

The iX has a standard automatic front and rear load leveling suspension to keep ride height level with a heavy load or when towing. The iX’s height leveling suspension allows the driver to raise ride height for better off-road clearance and then lower it again for easier entering and exiting and better on-road handling. The RDX doesn’t offer a load leveling suspension.

For a smoother ride and more stable handling, the iX’s wheelbase is 9.8 inches longer than on the RDX (118.1 inches vs. 108.3 inches).

For better handling and stability, the track (width between the wheels) on the iX is 1.8 inches wider in the front and 2.5 inches wider in the rear than on the RDX.

The iX’s front to rear weight distribution is more even (48.2% to 51.8%) than the RDX’s (57% to 43%). This gives the iX more stable handling and braking.

For greater off-road capability the iX has a greater minimum ground clearance than the RDX (8.8 vs. 8.2 inches), allowing the iX to travel over rougher terrain without being stopped or damaged.

The front grille of the iX uses electronically controlled shutters to close off airflow and reduce drag when less engine cooling is needed. This helps improve highway fuel economy. The RDX doesn’t offer active grille shutters.

The iX has 1.9 inches more front headroom, 1.8 inches more front shoulder room, 1.2 inches more rear headroom, .5 inches more rear legroom and 1.7 inches more rear shoulder room than the RDX.

The iX has a much larger cargo volume than the RDX with its rear seat up (35.5 vs. 31.1 cubic feet).

The iX has a higher standard payload capacity than the RDX (1003 vs. 838 lbs.).

The iX has a much higher maximum payload capacity than the RDX (1054 vs. 838 lbs.).

The iX’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.

To help drivers avoid possible obstacles, the iX has standard cornering lights to illuminate around corners when the turn signals are activated. The RDX doesn’t offer cornering lights. The iX also offers optional adaptive headlights to illuminate around corners automatically by reading vehicle speed and steering wheel angle.

The iX offers optional massaging front seats in order to maximize comfort and eliminate fatigue on long trips. Massaging seats aren’t available in the RDX.

To quickly and conveniently keep personal devices charged without cables tangling and wearing out, the BMW iX has a standard wireless phone charging system (Qi) in the center console. Wireless charging costs extra on the RDX.

The iX’s Automatic Parking Assistant 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.