2020 BMW X7 vs. 2020 Infiniti QX80

Detailed Review, Specifications & Comparison

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Safety

© 1999 - 2020 Advanta-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. 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. 6IUEX-0KENZ 45.55.47.189 2020/07/13

The X7 has standard Post-Crash Braking, which automatically apply the brakes in the event of a crash to help prevent secondary collisions and prevent further injuries. The QX80 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.

To provide maximum traction and stability on all roads, All-Wheel Drive is standard on the X7. But it costs extra on the QX80.

When descending a steep, off-road slope, the X7’s standard Hill Descent Control allows you to creep down safely. The QX80 doesn’t offer Hill Descent Control.

The X7’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 QX80 doesn’t offer a driver alert monitor.

For better protection of the passenger compartment, the X7 uses safety cell construction with a three-dimensional high-strength frame that surrounds the passenger compartment. It provides extra impact protection and a sturdy mounting location for door hardware and side impact beams. The QX80 uses a body-on-frame design, which has no frame members above the floor of the vehicle.

Both the X7 and the QX80 have standard driver and passenger frontal airbags, front 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, daytime running lights, rearview cameras and available around view monitors.

Warranty

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The X7’s corrosion warranty is 5 years longer than the QX80’s (12 vs. 7 years).

BMW pays for scheduled maintenance on the X7 for 3 years and 36,000 miles. BMW will pay for oil changes, lubrication and any other required maintenance. Infiniti doesn’t pay scheduled maintenance for the QX80.

There are over 70 percent more BMW dealers than there are Infiniti dealers, which makes it much easier should you ever need service under the X7’s warranty.

Reliability

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The battery on the X7 is in the trunk, which protects it from hot underhood temperatures that can degrade battery life. By keeping the X7’s battery 20 to 30 degrees cooler, its life is increased by years. The QX80’s battery is in the hot engine compartment.

J.D. Power and Associates’ 2019 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that BMW vehicles are more reliable than Infiniti vehicles. J.D. Power ranks BMW 7th in reliability, above the industry average. With 6 more problems per 100 vehicles, Infiniti is ranked 11th.

Engine

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The X7 xDrive50i’s standard 4.4 turbo V8 produces 56 more horsepower (456 vs. 400) and 66 lbs.-ft. more torque (479 vs. 413) than the QX80’s 5.6 DOHC V8. The X7 M50i’s standard 4.4 turbo V8 produces 123 more horsepower (523 vs. 400) and 140 lbs.-ft. more torque (553 vs. 413) than the QX80’s 5.6 DOHC V8.

As tested in Motor Trend the BMW X7 is faster than the Infiniti QX80:

X7 xDrive40i

X7 xDrive50i

QX80

Zero to 60 MPH

5.7 sec

4.7 sec

6.3 sec

Quarter Mile

14.2 sec

13.2 sec

14.9 sec

Speed in 1/4 Mile

97.8 MPH

107.3 MPH

93.7 MPH

Fuel Economy and Range

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On the EPA test cycle the X7 xDrive40i gets better fuel mileage than the QX80 AWD (20 city/25 hwy vs. 13 city/19 hwy).

Regenerative brakes improve the X7’s fuel efficiency by converting inertia back into energy instead of wasting it. The QX80 doesn’t offer a regenerative braking system.

In heavy traffic or at stoplights the X7’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. (Start/Stop isn’t accounted in present EPA fuel mileage tests.) The QX80 doesn’t offer an automatic engine start/stop system.

Transmission

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An eight-speed automatic is standard on the BMW X7, for better acceleration and lower engine speed on the highway. Only a seven-speed automatic is available for the QX80.

The X7’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 QX80 doesn’t offer launch control.

Brakes and Stopping

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For better stopping power the X7 M Sport’s front brake rotors are larger than those on the QX80:

X7 M Sport

QX80

Front Rotors

15.6 inches

13.8 inches

Rear Rotors

14.6 inches

13.8 inches

The X7 stops much shorter than the QX80:

X7

QX80

70 to 0 MPH

169 feet

185 feet

Car and Driver

60 to 0 MPH

136 feet

139 feet

Consumer Reports

60 to 0 MPH (Wet)

141 feet

155 feet

Consumer Reports

Tires and Wheels

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For better traction, the X7’s tires are larger than the largest tires available on the QX80 (285/45R21 vs. 275/60R20).

The X7’s standard tires provide better handling because they have a lower 45 series profile (height to width ratio) that provides a stiffer sidewall than the QX80’s standard 60 series tires. The X7’s optional 275/40R22 front and 315/35R22 rear tires have a lower 40 series front and 35 series rear profile than the QX80’s optional 50 series tires.

For better ride, handling and brake cooling the X7 has standard 21-inch wheels. Smaller 20-inch wheels are standard on the QX80.

Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires standard on the X7 can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The QX80 doesn’t offer run-flat tires.

Suspension and Handling

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The front and rear suspension of the X7 uses air springs for a smoother, controlled ride than the QX80, which uses coil springs in front. Air springs maintain proper ride height and ride more smoothly.

The X7 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 or off-road. The QX80’s suspension doesn’t offer adjustable shock absorbers.

For a smoother ride and more stable handling, the X7’s wheelbase is 1.1 inches longer than on the QX80 (122.2 inches vs. 121.1 inches).

The X7 xDrive50i handles at .80 G’s, while the QX80 AWD pulls only .72 G’s of cornering force in a Car and Driver skidpad test.

The X7 xDrive50i executes Motor Trend’s “Figure Eight” maneuver 1.6 seconds quicker than the QX80 AWD (27 seconds @ .69 average G’s vs. 28.6 seconds @ .57 average G’s).

Chassis

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The BMW X7 may be more efficient, handle and accelerate better because it weighs about 250 to 300 pounds less than the Infiniti QX80.

The X7 is 6.9 inches shorter than the QX80, making the X7 easier to handle, maneuver and park in tight spaces.

Unibody construction lowers the X7’s center of gravity significantly without reducing ground clearance. This contributes to better on the road handling and better off-road performance and stability. In addition, unibody construction makes the chassis stiffer, improving handling and reducing squeaks and rattles. The QX80 uses body-on-frame design instead.

The front grille of the X7 uses electronically controlled shutters to close off airflow and reduce drag when less engine cooling is needed. This helps improve highway fuel economy. The QX80 doesn’t offer active grille shutters.

Passenger Space

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The X7 has 2 inches more front headroom, .2 inches more front legroom, .2 inches more third row headroom and 4.5 inches more third row legroom than the QX80.

The front step up height for the X7 is 2.4 inches lower than the QX80 (20” vs. 22.4”). The X7’s rear step up height is 2.3 inches lower than the QX80’s (20.5” vs. 22.8”).

Cargo Capacity

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A low lift-over cargo hatch design makes loading and unloading the X7 easier. The X7’s cargo hatch lift-over height is 32.5 inches, while the QX80’s liftover is 35.8 inches.

The X7’s rear cargo window opens separately from the rest of the tailgate door to allow quicker loading of small packages. The QX80’s rear cargo window doesn’t open.

To make loading groceries and cargo easier when your hands are full, the X7’s tailgate can be opened and closed just by kicking your foot under the back bumper, leaving your hands completely free. The QX80 doesn’t offer a hands-free gesture to open its liftgate, forcing you to put cargo down if your hands are full.

Ergonomics

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Unlike the driver-only memory system in the QX80, the X7 offers an optional passenger memory, so that when drivers switch, the memory setting adjusts the driver’s seat, steering wheel position, outside mirror angle, climate settings and radio stations and the front passenger seat also adjusts to the new passenger’s preset preferences.

The X7 offers an optional heads-up display that projects speed and other key instrumentation readouts in front of the driver’s line of sight, allowing drivers to view information without diverting their eyes from the road. The QX80 doesn’t offer a heads-up display.

The X7’s power parking brake sets with one touch and releases with one touch or automatically. The QX80’s parking brake has to released manually.

The power windows standard on both the X7 and the QX80 have locks to prevent small children from operating them. When the lock on the X7 is engaged the driver can still operate all of the windows, for instance to close one opened by a child. The QX80 prevents the driver from operating the other windows just as it does the other passengers.

Manual rear side window sunshades are available in the X7 to help block heat and glare for the rear passengers. The QX80 doesn’t offer rear side window sunshades.

The X7 has standard heated front and optional heated second and third row seats, which keep the driver and passengers extremely comfortable in the winter. Infiniti doesn’t offer heated seats in the third row of the QX80.

The X7 offers optional massaging front seats in order to maximize comfort and eliminate fatigue on long trips. Massaging seats aren’t available in the QX80.

To quickly and conveniently keep personal devices charged without cables tangling and wearing out, the BMW X7 has a standard wireless phone charging system (Qi) in the center console. The QX80 doesn’t offer wireless personal charging.

The X7’s optional Parking Assistant Plus can parallel park or back into a parking spot by itself, starting, stopping and changing direction automatically. The QX80 doesn’t offer an automated parking system.

Recommendations

© 1999 - 2020 Advanta-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. 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. 6IUEX-0KENZ 45.55.47.189 2020/07/13

The BMW X7 outsold the Infiniti QX80 by 13% during 2019.

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