Compare the2024 BMW iXVS 2024 Audi Q4 e-tron

The BMW iX has standard driver and front passenger side knee airbags mounted low on the dashboard. These airbags helps prevent the driver and front passenger from sliding under their seatbelts or the main frontal airbags; this keeps them better positioned during a collision for maximum protection. Knee airbags also help keep the legs from striking the dashboard, preventing knee and leg injuries in the case of a serious frontal collision. The Q4 e-tron doesn’t offer knee airbags.

Over 200 people are killed each year when backed over by motor vehicles. The iX has a standard Active Park Distance Control that uses rear sensors to monitor for objects to the rear and automatically applies the brakes to prevent a collision. The Q4 e-tron doesn’t offer automatic braking for stationary objects directly to the rear.

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 Q4 e-tron.

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 Q4 e-tron doesn’t offer a driver alert monitor.

Both the iX and the Q4 e-tron have standard driver and passenger frontal airbags, front and rear side-impact airbags, side-impact head airbags, front seatbelt pretensioners, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, post-collision automatic braking systems, 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 798 to 1095 pounds more than the Audi Q4 e-tron. The NHTSA advises that heavier vehicles are much safer in collisions than their significantly lighter counterparts.

BMW pays for scheduled maintenance on the iX for 3 years and 36,000 miles. BMW will pay for tire rotations, cabin filter replacement, brake fluid replacement, inspections, and any other required maintenance. Audi only pays for the first scheduled maintenance visit on the Q4 e-tron.

There are over 15 percent more BMW dealers than there are Audi dealers, which makes it easier should you ever need service under the iX’s warranty.

A reliable vehicle saves its owner time, money and trouble. Nobody wants to be stranded or have to be without a vehicle while it’s being repaired. Consumer Reports rates the iX’s reliability 11 points higher than the Q4 e-tron.

J.D. Power and Associates’ 2023 Initial Quality Study of new car owners surveyed provide the statistics that show that BMW vehicles are better in initial quality than Audi vehicles. With 29 fewer problems per 100 vehicles, JD Power ranks BMW higher than Audi.

J.D. Power and Associates’ 2022 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that BMW vehicles are more reliable than Audi vehicles. J.D. Power ranks BMW above average in long-term dependability. With 5 more problems per 100 vehicles in the first three years of ownership, Audi is rated below average.

From surveys of all its subscribers, Consumer Reports’ January 2024 Auto Issue reports that BMW vehicles are more reliable than Audi vehicles. Consumer Reports ranks BMW 10 places higher in reliability than Audi.

The iX xDrive50’s standard electric motors produces 315 more horsepower (516 vs. 201) and 335 lbs.-ft. more torque (564 vs. 229) than the Q4 40 e-tron’s standard electric motor. The iX xDrive50’s electric motors produces 221 more horsepower (516 vs. 295) and 225 lbs.-ft. more torque (564 vs. 339) than the Q4 50 e-tron’s standard electric motors. The iX M60’s standard electric motors produces 315 more horsepower (610 vs. 295) and 410 lbs.-ft. more torque (749 vs. 339) than the Q4 50 e-tron’s standard electric motors.

As tested in Car and Driver the BMW iX is faster than the Q4 50 e-tron electric motors:

The iX can travel longer on a full charge than the Q4 e-tron on a full charge:

For better stopping power the iX’s standard brake rotors are larger than those on the Q4 e-tron:

The BMW iX has standard four-wheel disc brakes for better stopping power and improved directional control in poor weather. Only rear drums come on the Q4 e-tron. Drums can heat up and make stops longer, especially with antilock brakes that work much harder than conventional brakes.

The iX stops much shorter than the Q4 e-tron:

For better traction, the iX’s optional tires are larger than the largest tires available on the Q4 e-tron (275/40R22 vs. 235/55R19).

The iX’s optional tires provide better handling because they have a lower 40 series profile (height to width ratio) that provides a stiffer sidewall than the Q4 e-tron Quattro’s optional 50 series front and 45 series rear tires.

For better ride, handling and brake cooling the iX has standard 20-inch wheels. Smaller 19-inch wheels are standard on the Q4 e-tron. The iX’s optional 22-inch wheels are larger than the 20-inch wheels optional on the Q4 e-tron Quattro.

The iX M60 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 Q4 e-tron doesn’t offer a load leveling suspension.

For a smoother ride and more stable handling, the iX’s wheelbase is 9.4 inches longer than on the Q4 e-tron (118.1 inches vs. 108.7 inches).

For better handling and stability, the track (width between the wheels) on the iX is 3.7 inches wider in the front and 5.7 inches wider in the rear than on the Q4 e-tron.

The iX xDrive50 handles at .88 G’s, while the Q4 50 e-tron Prestige pulls only .84 G’s of cornering force in a Car and Driver skidpad test.

The design of the BMW iX amounts to more than styling. The iX offers aerodynamic coefficients of drag from .25 to .26 Cd (depending on bodystyle and options). That is lower than the Q4 e-tron (.28 to .31) and many sports cars. A more efficient exterior helps keep the interior quieter and helps the iX get better fuel mileage.

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 Q4 e-tron doesn’t offer active grille shutters.

The iX has 3 inches more front headroom, 4.8 inches more front shoulder room, 1.2 inches more rear headroom, 1.7 inches more rear legroom and 3.2 inches more rear shoulder room than the Q4 e-tron.

The iX has a much larger cargo volume with its rear seat up than the Q4 e-tron with its rear seat up (35.5 vs. 24.8 cubic feet). The iX has a much larger cargo volume with its rear seat folded than the Q4 e-tron with its rear seat folded (77.9 vs. 53.1 cubic feet).

J.D. Power and Associates surveys of service recipients show that BMW service is better than Audi. J.D. Power ranks BMW 7th in service department satisfaction (above the industry average). With a 1% lower rating, Audi is ranked 8th.

The iX’s power window, power lock, power mirror and cruise control switches are lit from behind, making them plainly visible and easier to operate at night. The Q4 e-tron’s cruise control switches are unlit, making them difficult to find at night and operate safely.

Laser headlights, optional on the iX, produce their light by firing blue lasers through phosphorus, a process that uses one-half the power of the Q4 e-tron’s LED headlights. Laser headlights can have double the range of LEDs with a much smaller surface area.

To help drivers avoid possible obstacles, the iX has standard cornering lights to illuminate around corners when the turn signals are activated. The Q4 e-tron 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.

Both the iX and the Q4 e-tron have standard heated front seats. The iX also offers optional heated rear seats to keep those passengers extremely comfortable in the winter. Heated rear seats aren’t available in the Q4 e-tron.

Optional air-conditioned seats in the iX keep the driver and front passenger comfortable and take the sting out of hot seats in Summer. The Q4 e-tron doesn’t offer air-conditioned seats.

The iX 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 Q4 e-tron Premium Plus/Prestige.

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 Q4 e-tron.

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 Q4 e-tron.

The iX’s optional Automatic Parking Assistant can parallel park or back into a parking spot by itself, starting, stopping and changing direction automatically. Parking Assistant Professional will park and retrieve your car remotely: press a button and watch it park itself. This is ideal for tight locations. The Q4 e-tron Premium Plus/Prestige’s automatic parking system requires operating the brakes and transmission to safely park and it doesn’t offer remote control parking.

Consumer Reports® recommends both the BMW iX and the Audi Q4 e-tron, based on reliability, safety and performance.

J.D. Power and Associates rated the iX first among upper midsize premium suvs in owner reported satisfaction. This includes how well the vehicle performs and satisfies its owner’s expectations. The Q4 e-tron isn’t in the top three.

The BMW iX outsold the Audi Q4 e-tron by 61% during 2023.