2020 BMW X7 vs. 2021 Chevrolet Tahoe

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 2020/10/26

The X7’s pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The Tahoe doesn’t offer pre-crash pretensioners.

For enhanced safety, the middle seat shoulder belts of the BMW X7 are height-adjustable to accommodate a wide variety of driver and passenger heights. A better fit can prevent injuries and the increased comfort also encourages passengers to buckle up. The Chevrolet Tahoe doesn’t offer height-adjustable middle seat belts.

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 Tahoe 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 Tahoe.

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 Tahoe 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 Tahoe uses a body-on-frame design, which has no frame members above the floor of the vehicle.

Both the X7 and the Tahoe have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, 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 comes with a full 4-year/50,000-mile basic warranty, which covers the entire truck and includes 24-hour roadside assistance. The Tahoe’s 3-year/36,000-mile basic warranty expires 1 year and 14,000 miles sooner.

The X7’s corrosion warranty is 6 years and unlimited miles longer than the Tahoe’s (12/unlimited vs. 6/100,000).

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. Chevrolet only pays for the first scheduled maintenance visit on the Tahoe.

Reliability

© 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 2020/10/26

For smoother operation, better efficiency and fewer moving parts, the engines in the X7 have an overhead cam design, rather than the old pushrod design of some of the engines in the Tahoe.

From surveys of all its subscribers, Consumer Reports’ December 2019 Auto Issue reports that BMW vehicles are more reliable than Chevrolet vehicles. Consumer Reports ranks BMW 8 places higher in reliability than Chevrolet.

Engine

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The X7 has more powerful engines than the Tahoe:

Horsepower

Torque

X7 xDrive50i 4.4 turbo V8

456 HP

479 lbs.-ft.

X7 M50i 4.4 turbo V8

523 HP

553 lbs.-ft.

Tahoe 5.3 V8

355 HP

383 lbs.-ft.

Tahoe High Country 6.2 V8

420 HP

460 lbs.-ft.

Fuel Economy and Range

© 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 2020/10/26

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

Transmission

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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 Tahoe doesn’t offer launch control.

Tires and Wheels

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For better traction, the X7 has larger standard tires than the Tahoe (F:275/40R22 & R:315/35R22 vs. 265/65R18). The X7’s tires are larger than the largest tires available on the Tahoe (285/45R21 vs. 275/65R20).

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 Tahoe’s standard 65 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 Tahoe’s optional 50 series tires.

For better ride, handling and brake cooling the X7 has standard 21-inch wheels. Smaller 18-inch wheels are standard on the Tahoe.

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 Tahoe 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 Tahoe, which uses coil springs. Air springs maintain proper ride height and ride more smoothly.

For a smoother ride and more stable handling, the X7’s wheelbase is 1.3 inches longer than on the Tahoe (122.2 inches vs. 120.9 inches).

Chassis

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The X7 is 7.4 inches shorter than the Tahoe, 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 Tahoe uses body-on-frame design instead.

Ergonomics

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Unlike the driver-only memory system in the Tahoe LT/RST/Z71/Premier/High Country, 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’s front and rear power windows all open or close with one touch of the switches, making it more convenient at drive-up windows and toll booths, or when talking with someone outside of the car. The Tahoe’s rear power window switches have to be held the entire time to close them fully.

If the windows are left open on the X7 the driver can close them all at the outside door handle or from a distance using the remote. On a hot day the driver can lower the windows from a distance using the keyless remote. The driver of the Tahoe can only operate the windows from inside the vehicle, with the ignition on.

To help drivers see further while navigating curves, the X7 has standard adaptive headlights to illuminate around corners automatically by reading vehicle speed and steering wheel angle. The Tahoe doesn’t offer cornering lights.

Manual rear side window sunshades are available in the X7 to help block heat and glare for the rear passengers. The Tahoe 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. Chevrolet doesn’t offer heated seats in the third row of the Tahoe.

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 Tahoe.

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. Only the Tahoe LT/RST/Z71/Premier/High Country offers wireless 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 Tahoe doesn’t offer an automated parking system.

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