2019 Audi Q7 vs. 2019 GMC Acadia

Detailed Review, Specifications & Comparison

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Safety

For enhanced safety, the front and middle seat shoulder belts of the Audi Q7 have pretensioners to tighten the seatbelts and eliminate dangerous slack in the event of a collision and force limiters to limit the pressure the belts will exert on the passengers. The GMC Acadia doesn’t offer pretensioners for the middle seat belts.

For enhanced safety, the front seat shoulder belts of the Audi Q7 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 GMC Acadia doesn’t offer height-adjustable front seat belts.

Both the Q7 and Acadia have child safety locks to prevent children from opening the rear doors. The Q7 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 Acadia’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 Q7 has a standard Secondary Collision Brake Assist, which automatically applies the brakes in the event of a crash to help prevent secondary collisions and prevent further injuries. The Acadia 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 Q7 offers an optional backup collision prevention system which use rear sensors to monitor and automatically apply the brakes to prevent a rear collision. The Acadia doesn’t offer backup collision prevention brakes.

To provide maximum traction and stability on all roads, All-Wheel Drive is standard on the Q7. But it costs extra on the Acadia.

A passive infrared night vision system optional on the Q7 Prestige helps the driver to more easily detect people, animals or other objects in front of the vehicle at night. Using an infrared camera to detect heat, the system then displays the image on a monitor in the dashboard. The Acadia doesn’t offer a night vision system.

Both the Q7 and the Acadia 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, daytime running lights, rearview cameras, available lane departure warning systems, blind spot warning systems, around view monitors and rear cross-path warning.

The National Highway Traffic Safety Administration does 35 MPH front crash tests on new vehicles. In this test, results indicate that the Audi Q7 is safer than the GMC Acadia:

 

Q7

Acadia

 

Passenger

STARS

4 Stars

4 Stars

HIC

102

403

Neck Stress

118 lbs.

152 lbs.

Neck Compression

38 lbs.

186 lbs.

Leg Forces (l/r)

46/29 lbs.

10/95 lbs.

New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.

The National Highway Traffic Safety Administration does side impact tests on new vehicles. In this test, which crashes the vehicle into a flat barrier at 38.5 MPH and into a post at 20 MPH, results indicate that the Audi Q7 is safer than the GMC Acadia:

 

Q7

Acadia

 

Front Seat

STARS

5 Stars

5 Stars

Chest Movement

.8 inches

.9 inches

Abdominal Force

128 G’s

155 G’s

 

Rear Seat

STARS

5 Stars

5 Stars

Hip Force

888 lbs.

896 lbs.

 

Into Pole

STARS

5 Stars

5 Stars

Max Damage Depth

13 inches

14 inches

HIC

290

319

Hip Force

557 lbs.

673 lbs.

New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.

Warranty

The Q7 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 Q7’s corrosion warranty is 6 years and unlimited miles longer than the Acadia’s (12/unlimited vs. 6/100,000).

Reliability

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 Q7’s reliability 38 points higher than the Acadia.

J.D. Power and Associates’ 2018 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Audi vehicles are more reliable than GMC vehicles. J.D. Power ranks Audi 13th in reliability, above the industry average. With 15 more problems per 100 vehicles, GMC is ranked 18th.

From surveys of all its subscribers, Consumer Reports’ December 2018 Auto Issue reports that Audi vehicles are more reliable than GMC vehicles. Consumer Reports ranks Audi 18 places higher in reliability than GMC.

Engine

The Q7 45 TFSI’s standard 2.0 turbo 4 cyl. produces 55 more horsepower (248 vs. 193) and 85 lbs.-ft. more torque (273 vs. 188) than the Acadia’s standard 2.5 DOHC 4 cyl. The Q7 45 TFSI’s 2.0 turbo 4 cyl. produces 2 lbs.-ft. more torque (273 vs. 271) than the Acadia’s optional 3.6 DOHC V6. The Q7 55 TFSI’s standard 3.0 supercharged V6 produces 19 more horsepower (329 vs. 310) and 54 lbs.-ft. more torque (325 vs. 271) than the Acadia’s optional 3.6 DOHC V6.

As tested in Motor Trend the Q7 55 TFSI 3.0 supercharged V6 is faster than the GMC Acadia V6:

 

Q7

Acadia

Zero to 30 MPH

2 sec

2.4 sec

Zero to 60 MPH

5.4 sec

6.7 sec

Zero to 80 MPH

9 sec

11.8 sec

Zero to 100 MPH

14 sec

18.2 sec

Passing 45 to 65 MPH

2.7 sec

3.7 sec

Quarter Mile

14 sec

15.3 sec

Speed in 1/4 Mile

100.2 MPH

92.6 MPH

Fuel Economy and Range

On the EPA test cycle the Q7 45 TFSI 4 cyl. gets better city fuel mileage than the Acadia AWD V6 (19 city/25 hwy vs. 17 city/25 hwy).

Regardless of its engine, the Q7’s engine automatically turns off when the vehicle is stopped, saving fuel and reducing pollution. (Start/Stop isn’t accounted in present EPA fuel mileage tests.) GMC only offers an automatic engine start/stop system on the Acadia 4 cyl.

The Q7 has 3.1 gallons more fuel capacity than the Acadia FWD’s standard fuel tank (22.5 vs. 19.4 gallons), for longer range between fill-ups.

Transmission

An eight-speed automatic is available on the Audi Q7, for better acceleration and lower engine speed on the highway. Only a six-speed automatic is available for the Acadia.

Brakes and Stopping

For better stopping power the Q7’s brake rotors are larger than those on the Acadia:

 

Q7

Acadia

Front Rotors

14.8 inches

12.6 inches

Rear Rotors

13.8 inches

12.4 inches

The Q7 stops shorter than the Acadia:

 

Q7

Acadia

 

70 to 0 MPH

166 feet

173 feet

Car and Driver

60 to 0 MPH

117 feet

126 feet

Motor Trend

Tires and Wheels

For better traction, the Q7 has larger standard tires than the Acadia (255/55R19 vs. 235/65R18). The Q7’s optional tires are larger than the largest tires available on the Acadia (285/45R20 vs. 255/65R17).

The Q7 2.0T’s standard tires provide better handling because they have a lower 60 series profile (height to width ratio) that provides a stiffer sidewall than the Acadia’s standard 65 series tires. The Q7’s optional tires have a lower 40 series profile than the Acadia’s optional 55 series tires.

For better ride, handling and brake cooling the Q7 2.0T has standard 18-inch wheels. Smaller 17-inch wheels are standard on the Acadia. The Q7’s optional 21-inch wheels are larger than the 20-inch wheels optional on the Acadia.

Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires available on the Q7 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

For a smoother ride and more stable handling, the Q7’s wheelbase is 5.4 inches longer than on the Acadia (117.9 inches vs. 112.5 inches).

For better handling and stability, the track (width between the wheels) on the Q7 is 1.6 inches wider in the front and 2.1 inches wider in the rear than on the Acadia.

The Q7’s front to rear weight distribution is more even (55% to 45%) than the Acadia’s (56.5% to 43.5%). This gives the Q7 more stable handling and braking.

The Q7 Prestige handles at .85 G’s, while the Acadia SLT AWD pulls only .82 G’s of cornering force in a Motor Trend skidpad test.

The Q7 Premium Plus executes Motor Trend’s “Figure Eight” maneuver quicker than the Acadia SLT AWD (26.4 seconds @ .68 average G’s vs. 26.9 seconds @ .67 average G’s).

For greater off-road capability the Q7 has a 1.1 inches greater minimum ground clearance than the Acadia (8.3 vs. 7.2 inches), allowing the Q7 to travel over rougher terrain without being stopped or damaged. The Q7 w/Air Suspension’s minimum ground clearance is 1.9 inches higher than on the Acadia All Terrain (9.7 vs. 7.8 inches).

Chassis

As tested by Car and Driver, the interior of the Q7 Prestige is quieter than the Acadia Denali AWD:

 

Q7

Acadia

Full-Throttle

70 dB

78 dB

70 MPH Cruising

65 dB

68 dB

Passenger Space

The Q7 has .7 inches more front legroom and .1 inches more front shoulder room than the Acadia.

Cargo Capacity

The Q7’s cargo area provides more volume than the Acadia.

 

Q7

Acadia

Behind Third Seat

14.8 cubic feet

12.8 cubic feet

A standard locking glovebox (which can’t be accessed with the valet key) keeps your small valuables safer in the Q7. The Acadia doesn’t offer locking storage for small valuables.

Towing

The Q7’s standard towing capacity is much higher than the Acadia’s (4400 vs. 1000 pounds). Maximum trailer towing in the GMC Acadia is only 4000 pounds. The Q7 offers up to a 7700 lbs. towing capacity.

Servicing Ease

The engine in the Q7 is mounted longitudinally (North-South), instead of sideways, as in the Acadia. This makes it easier to service and maintain, because there are no rear spark plugs and the accessory belts are in front.

J.D. Power and Associates surveys of service recipients show that Audi service is better than GMC. J.D. Power ranks Audi third in service department satisfaction. With a 28% lower rating, GMC is ranked 13th.

Ergonomics

Unlike the driver-only memory seat and mirrors optional at extra cost in the Acadia (except SL/SLE), the Q7 Prestige offers an optional passenger memory, so that when drivers switch, the memory setting adjusts the driver’s seat, steering wheel position and outside mirror angle and the front passenger seat also adjusts to the new passenger’s preset preferences.

The Q7 Prestige has a standard 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 Acadia doesn’t offer a heads-up display.

The Q7’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 power window switches have to be held the entire time to close them fully. Only its front windows open automatically. The Acadia’s optional windows’ passenger windows don’t close automatically.

If the windows are left open on the Q7 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 also lower the windows the same way. The driver of the Acadia can only operate the windows from inside the vehicle, with the ignition on.

The Q7 has a standard locking fuel door with a remote release located convenient to the driver. A locking fuel door helps prevent vandalism, such as sugar in the tank and fuel theft. The Acadia doesn’t offer a locking fuel door.

The Q7’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.

In poor weather, headlights can lose their effectiveness as grime builds up on their lenses. This can reduce visibility without the driver realizing. The Q7 offers available headlight washers to keep headlight output high. The Acadia doesn’t offer headlight washers.

To help drivers avoid possible obstacles, the Q7 offers optional cornering lights to illuminate around corners when the turn signals are activated. The Acadia doesn’t offer cornering lights. The Q7 also offers optional adaptive headlights to illuminate around corners automatically by reading vehicle speed and steering wheel angle.

To better shield the driver and front passenger’s vision, the Q7 has standard dual-element sun visors that can block glare from two directions simultaneously. The Acadia doesn’t offer secondary sun visors.

A manual rear sunshade is optional in the Q7 to help block heat and glare for the rear passengers. The Acadia doesn’t offer a rear sunshade.

Economic Advantages

Insurance will cost less for the Q7 owner. The Car Book by Jack Gillis rates the Q7 with a number “5” insurance rate while the Acadia is rated higher at a number “10” rate.

According to The Car Book by Jack Gillis, the Q7 is less expensive to operate than the Acadia because it costs $126 less to do the manufacturer’s suggested maintenance for 50,000 miles. Typical repairs cost much less on the Q7 than the Acadia, including $84 less for a water pump, $7 less for front brake pads, $43 less for a fuel pump and $549 less for a power steering pump.

Recommendations

Consumer Reports® recommends the Audi Q7, based on reliability, safety and performance.

The Q7 was chosen as one of Car and Driver’s “Top Five/10Best Trucks” for 2 of the last 2 years. The Acadia has never been a Car and Driver “Top Five/10Best Truck” pick.

© 1991-2018 Advanta-STAR Automotive Research. All rights reserved.

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