2020 Honda Odyssey vs. 2020 GMC Acadia

Detailed Review, Specifications & Comparison

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Safety

© 1999 - 2019 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 2019/10/23

The Odyssey has a standard Whiplash Mitigation Front Seat Design, which use a specially designed headrest to protect the driver and front passenger from whiplash. During a rear-end collision, the Whiplash Mitigation Front Seat Design system moves the headrests forward to prevent neck and spine injuries. The Acadia doesn’t offer a whiplash protection system.

Both the Odyssey and the Acadia have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, front seatbelt pretensioners, front wheel drive, height adjustable front shoulder belts, plastic fuel tanks, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights, rearview cameras, available crash mitigating brakes, lane departure warning systems, blind spot warning systems, front and rear parking sensors 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 Honda Odyssey is safer than the GMC Acadia:

Odyssey

Acadia

Driver

STARS

5 Stars

5 Stars

Leg Forces (l/r)

95/82 lbs.

112/392 lbs.

Passenger

STARS

5 Stars

4 Stars

HIC

247

403

Neck Injury Risk

32%

37%

Neck Stress

101 lbs.

152 lbs.

Neck Compression

63 lbs.

186 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 Honda Odyssey is safer than the GMC Acadia:

Odyssey

Acadia

Front Seat

STARS

5 Stars

5 Stars

HIC

66

106

Chest Movement

.5 inches

.9 inches

Abdominal Force

83 G’s

155 G’s

Rear Seat

STARS

5 Stars

5 Stars

HIC

125

263

Hip Force

709 lbs.

896 lbs.

Into Pole

STARS

5 Stars

5 Stars

Max Damage Depth

12 inches

14 inches

Hip Force

472 lbs.

673 lbs.

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

For its top level performance in IIHS driver-side small overlap frontal, moderate overlap frontal, side impact, rear impact and roof-crush tests, with its optional front crash prevention system, its “Good” rating in the new passenger-side small overlap crash test, and its available headlight’s “Acceptable” rating, the Insurance Institute for Highway Safety grants the Odyssey the rating of “Top Pick” for 2019, a rating granted to only 88 vehicles tested by the IIHS. The Acadia was last qualified as a “Top Pick” in 2017.

Warranty

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

Reliability

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The engine in the Odyssey has a single overhead cam for simplicity. The engines in the Acadia have dual overhead cams, which add to the number of moving parts and the complexity of the cylinder heads.

J.D. Power and Associates’ 2019 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Honda vehicles are more reliable than GMC vehicles. J.D. Power ranks Honda 16th in reliability. With 15 more problems per 100 vehicles, GMC is ranked 22nd.

From surveys of all its subscribers, Consumer Reports’ December 2018 Auto Issue reports that Honda vehicles are more reliable than GMC vehicles. Consumer Reports ranks Honda 10 places higher in reliability than GMC.

Engine

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The Odyssey’s 3.5 SOHC V6 produces 87 more horsepower (280 vs. 193) and 74 lbs.-ft. more torque (262 vs. 188) than the Acadia’s standard 2.5 DOHC 4 cyl. The Odyssey’s 3.5 SOHC V6 produces 50 more horsepower (280 vs. 230) and 4 lbs.-ft. more torque (262 vs. 258) than the Acadia’s optional 2.0 turbo 4 cyl.

Fuel Economy and Range

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On the EPA test cycle the Odyssey gets better fuel mileage than the Acadia FWD V6 (19 city/28 hwy vs. 19 city/27 hwy).

An engine control system that can shut down half of the engine’s cylinders helps improve the Odyssey’s fuel efficiency. The Acadia doesn’t offer a system that can shut down part of the engine.

To lower fuel costs and make buying fuel easier, the Honda Odyssey uses regular unleaded gasoline. The Acadia with the 2.0 turbo 4 cyl. engine requires premium for maximum efficiency, which can cost 20 to 55 cents more per gallon.

Transmission

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A 10-speed automatic is standard on the Honda Odyssey, for better acceleration and lower engine speed on the highway. Only a nine-speed automatic is available for the Acadia.

Brakes and Stopping

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The Odyssey stops shorter than the Acadia:

Odyssey

Acadia

60 to 0 MPH

125 feet

126 feet

Motor Trend

Tires and Wheels

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The Odyssey’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.

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

Suspension and Handling

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For a smoother ride and more stable handling, the Odyssey’s wheelbase is 5.6 inches longer than on the Acadia (118.1 inches vs. 112.5 inches).

For better handling and stability, the track (width between the wheels) on the Odyssey is 2.8 inches wider in the front and 2.7 inches wider in the rear than on the Acadia.

Passenger Space

© 1999 - 2019 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 2019/10/23

The Odyssey offers optional seating for 8 passengers; the Acadia can only carry up to 7.

The Odyssey has 19.8 cubic feet more passenger volume than the Acadia (163.6 vs. 143.8).

The Odyssey has .7 inches more front headroom, 2.9 inches more front hip room, 3.7 inches more front shoulder room, 1.2 inches more rear legroom, 11.5 inches more rear hip room and 2.9 inches more rear shoulder room than the Acadia AT4.

The Odyssey has .7 inches more front headroom, 2.9 inches more front hip room, 3.7 inches more front shoulder room, 1.2 inches more rear legroom, 11.5 inches more rear hip room, 2.9 inches more rear shoulder room, 1.1 inches more third row headroom, 8.4 inches more third row legroom, 5.5 inches more third row hip room and 5.7 inches more third row shoulder room than the Acadia.

For enhanced passenger comfort on long trips the Odyssey’s middle and third row seats recline. The Acadia’s third row seats don’t recline.

Cargo Capacity

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

Odyssey

Acadia

Behind Third Seat

32.8 cubic feet

12.8 cubic feet

Third Seat Folded

88.8 cubic feet

41.7 cubic feet

A low lift-over cargo hatch design makes loading and unloading the Odyssey easier. The Odyssey’s cargo hatch lift-over height is 22.5 inches, while the Acadia’s liftover is 32 inches.

The Odyssey’s cargo area is larger than the Acadia’s in almost every dimension:

Odyssey

Acadia AT4

Acadia

Length to seat (3rd/2nd/1st)

25”/56”/91”

n.a./48”/83”

18.5”/48”/83”

Max Width

50”

50”

50”

Min Width

48”

42.5”

42.5”

Height

54”

33”

33”

The Odyssey has a standard One-Motion Magic Seat third row seat, which folds flat into the floor. This completely clears a very large cargo area quickly. The Acadia doesn’t offer seats that fold into the floor.

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

Towing

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The Odyssey’s standard towing capacity is much higher than the Acadia’s (3000 vs. 1000 pounds).

Ergonomics

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The Odyssey’s standard front power windows 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 the car. The Acadia’s front passenger window doesn’t close automatically. The Odyssey EX/EX-L/Touring/Elite’s front and rear power windows all open or close fully with one touch of the switches.

If the windows are left open on the Odyssey the driver can close them all at the outside door handle. On a hot day the driver can lower the windows at the outside door handle or 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 Odyssey 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 Odyssey Elite’s standard wipers adjust their speed and turn on and off automatically according to the amount of rainfall on the windshield. The Acadia’s intermittent wipers change speed with vehicle speed, but can’t turn on and off or change speed based on changing rainfall.

The Insurance Institute for Highway Safety (IIHS) conducts detailed tests on headlights for their range both straight ahead and in curves and to be certain they don’t exceed acceptable amounts of glare to oncoming drivers. The Odyssey’s available headlights were rated “Acceptable” by the IIHS, while the Acadia’s headlights are rated “Marginal” to “Poor.”

Economic Advantages

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Insurance will cost less for the Odyssey owner. The Complete Car Cost Guide estimates that insurance for the Odyssey will cost $390 to $2765 less than the Acadia over a five-year period.

The Odyssey will cost the buyer less in the long run because of its superior resale value. The IntelliChoice estimates that the Odyssey will retain 47.39% to 51.03% of its original price after five years, while the Acadia only retains 35.93% to 45.86%.

According to The Car Book by Jack Gillis, the Odyssey is less expensive to operate than the Acadia because it costs $673 less to do the manufacturer’s suggested maintenance for 50,000 miles. Typical repairs cost much less on the Odyssey than the Acadia, including $114 less for front brake pads, $109 less for fuel injection, $23 less for a fuel pump, $33 less for front struts, $813 less for a timing belt/chain and $590 less for a power steering pump.

IntelliChoice estimates that five-year ownership costs (depreciation, financing, insurance, fuel, fees, repairs and maintenance) for the Honda Odyssey will be $1756 to $5552 less than for the GMC Acadia.

Recommendations

© 1999 - 2019 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 2019/10/23

The Car Book by Jack Gillis recommends the Honda Odyssey, based on economy, maintenance, safety and complaint levels.

J.D. Power and Associates rated the Odyssey first among minivans in owner reported satisfaction. This includes how well the vehicle performs and satisfies its owner’s expectations. The Acadia isn’t in the top three.

The Honda Odyssey outsold the GMC Acadia by 20% during 2018.

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

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