2020 Mercedes GLB vs. 2020 GMC Acadia

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 2020/01/20

For enhanced safety, the front and middle seat shoulder belts of the Mercedes GLB have pretensioners to tighten the seatbelts and eliminate dangerous slack in the event of a collision. The GMC Acadia doesn’t offer pretensioners for the middle seat belts.

The GLB’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 Acadia doesn’t offer a driver alert monitor.

Both the GLB and the Acadia have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, front-wheel drive, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights, rearview cameras, available all-wheel drive, lane departure warning systems, blind spot warning systems and around view monitors.

Warranty

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The GLB comes with a full 4-year/50,000-mile basic warranty, which covers the entire truck and includes 24-hour roadside assistance. The Acadia’s 3-year/36,000-mile basic warranty expires 1 year and 14,000 miles sooner.

The GLB’s corrosion warranty is unlimited miles longer than the Acadia’s (unlimited vs. 100,000 miles).

Reliability

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J.D. Power and Associates’ 2019 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Mercedes vehicles are more reliable than GMC vehicles. J.D. Power ranks Mercedes 13th in reliability, above the industry average. With 27 more problems per 100 vehicles, GMC is ranked 22nd.

From surveys of all its subscribers, Consumer Reports’ December 2019 Auto Issue reports that Mercedes vehicles are more reliable than GMC vehicles. Consumer Reports ranks Mercedes 1 place higher in reliability than GMC.

Engine

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The GLB’s 2.0 turbo 4-cylinder produces 28 more horsepower (221 vs. 193) and 70 lbs.-ft. more torque (258 vs. 188) than the Acadia’s standard 2.5 DOHC 4-cylinder.

Fuel Economy and Range

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On the EPA test cycle the GLB gets better fuel mileage than the Acadia:

GLB

Acadia

2WD

n/a

21 city/27 hwy

2.5 4 cyl./Auto

2.0 turbo 4 cyl./Auto

23 city/30 hwy

21 city/28 hwy

2.0 4 cyl./Auto

n/a

19 city/27 hwy

3.6 V6/Auto

4WD

2.0 turbo 4 cyl./Auto

23 city/31 hwy

21 city/27 hwy

2.0 4 cyl./Auto

Transmission

© 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 2020/01/20

The GLB offers a standard sequential manual gearbox (SMG). With no clutch pedal to worry about and a fully automatic mode, an SMG is much more efficient than a conventional automatic but just as easy to drive. The Acadia doesn’t offer an SMG or a conventional manual transmission.

Brakes and Stopping

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For better stopping power the GLB’s brake rotors are larger than those on the Acadia:

GLB

Acadia

Front Rotors

13 inches

12.6 inches

Rear Rotors

12.6 inches

12.4 inches

Tires and Wheels

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The GLB’s standard tires provide better handling because they have a lower 55 series profile (height to width ratio) that provides a stiffer sidewall than the Acadia’s standard 65 series tires. The GLB’s optional tires have a lower 50 series profile than the Acadia’s optional 55 series tires.

For better ride, handling and brake cooling the GLB has standard 18-inch wheels. Smaller 17-inch wheels are standard on the Acadia.

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

Suspension and Handling

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The GLB’s drift compensation steering can automatically compensate for road conditions which would cause the vehicle to drift from side to side, helping the driver to keep the vehicle straight more easily. The Acadia doesn’t offer drift compensation steering.

For greater off-road capability the GLB has a greater minimum ground clearance than the Acadia (7.9 vs. 7.2 inches), allowing the GLB to travel over rougher terrain without being stopped or damaged. The GLB’s minimum ground clearance is .1 inch higher than on the Acadia All Terrain (7.9 vs. 7.8 inches).

Chassis

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The Mercedes GLB may be more efficient, handle and accelerate better because it weighs about 300 to 500 pounds less than the GMC Acadia.

The GLB is 11 inches shorter than the Acadia, making the GLB easier to handle, maneuver and park in tight spaces.

Cargo Capacity

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A standard locking glovebox keeps your small valuables safer in the GLB. The Acadia doesn’t offer locking storage for small valuables.

Servicing Ease

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J.D. Power and Associates surveys of service recipients show that Mercedes service is better than GMC. J.D. Power ranks Mercedes fifth in service department satisfaction. With a 30% lower rating, GMC is ranked 14th.

Ergonomics

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Unlike the driver-only memory seat and mirrors optional at extra cost in the Acadia (except SL/SLE/AT4), the GLB has standard driver and passenger memory, so that when drivers switch, the memory setting adjusts the driver’s seat, steering wheel position (with optional power wheel adjuster) and outside mirror angle and the front passenger seat also adjusts to the new passenger’s preset preferences.

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

The GLB’s front and rear power windows all open or close fully with one touch of the switches, making it more convenient at drive-up windows and toll booths, or when talking with someone outside the car. The Acadia’s rear power window switches have to be held the entire time to open them fully. Only its driver’s window closes automatically.

If the windows are left open on the GLB 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 Acadia can only operate the windows from inside the vehicle, with the ignition on.

The GLB’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 Acadia’s 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 GLB offers optional cornering lights to illuminate around corners when the turn signals are activated. The Acadia doesn’t offer cornering lights. The GLB also offers optional adaptive headlights to illuminate around corners automatically by reading vehicle speed and steering wheel angle.

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

The GLB’s optional Active Parking Assist can parallel park by itself, stopping and changing direction automatically. The Acadia doesn’t offer an automated parking system.

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