2020 Mazda CX-9 vs. 2020 Toyota Sienna

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 2020/08/13

Both the CX-9 and the Sienna have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, front seatbelt pretensioners, front wheel drive, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, lane departure warning systems, rearview cameras, available all wheel drive and around view monitors.

The National Highway Traffic Safety Administration does 35 MPH front crash tests on new vehicles. In this test, results indicate that the Mazda CX-9 is safer than the Toyota Sienna:

CX-9

Sienna

Passenger

STARS

4 Stars

4 Stars

HIC

337

413

Neck Stress

183 lbs.

218 lbs.

Leg Forces (l/r)

376/375 lbs.

604/305 lbs.

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

A significantly tougher test than their original offset frontal crash test, the Insurance Institute for Highway Safety does 40 MPH small overlap frontal offset crash tests. In this test, where only 25% of the total width of the vehicle is struck, results indicate that the Mazda CX-9 is safer than the Sienna:

CX-9

Sienna

Overall Evaluation

GOOD

ACCEPTABLE

Restraints

GOOD

ACCEPTABLE

Head Neck Evaluation

GOOD

GOOD

Peak Head Forces

0 G’s

0 G’s

Steering Column Movement Rearward

0 cm

5 cm

Chest Evaluation

GOOD

GOOD

Hip & Thigh Evaluation

GOOD

GOOD

Femur Force R/L

1.3/.2 kN

4.3/.9 kN

Hip & Thigh Injury Risk R/L

0%/0%

2%/0%

Lower Leg Evaluation

GOOD

GOOD

Tibia index R/L

.37/.44

.54/.34

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 Mazda CX-9 is safer than the Toyota Sienna:

CX-9

Sienna

Front Seat

STARS

5 Stars

5 Stars

Chest Movement

.4 inches

.6 inches

Abdominal Force

98 G’s

144 G’s

Hip Force

195 lbs.

391 lbs.

Rear Seat

STARS

5 Stars

5 Stars

Hip Force

582 lbs.

746 lbs.

Into Pole

STARS

5 Stars

5 Stars

Max Damage Depth

15 inches

17 inches

HIC

249

404

Hip Force

553 lbs.

586 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 and passenger-side small overlap frontal, moderate overlap frontal, side impact, roof strength and head restraint tests, its standard vehicle-to-vehicle front crash prevention system, its standard vehicle-to-pedestrian front crash prevention system, and its standard headlight’s “Good” rating, the Insurance Institute for Highway Safety grants the CX-9 its highest rating: “Top Pick Plus” for 2020, a rating granted to only 31 vehicles tested by the IIHS. The Sienna is not even a standard “Top Pick.”

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 2020/08/13

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 CX-9’s reliability 18 points higher than the Sienna.

From surveys of all its subscribers, Consumer Reports’ December 2019 Auto Issue reports that Mazda vehicles are more reliable than Toyota vehicles. Consumer Reports ranks Mazda second in reliability. Toyota is ranked third.

Engine

© 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 2020/08/13

The CX-9’s 2.5 turbo 4-cylinder produces 57 lbs.-ft. more torque (320 vs. 263) than the Sienna’s 3.5 DOHC V6.

As tested in Car and Driver the Mazda CX-9 is faster than the Toyota Sienna:

CX-9

Sienna

Zero to 30 MPH

2.3 sec

2.5 sec

Zero to 60 MPH

6.8 sec

6.9 sec

Passing 30 to 50 MPH

3.4 sec

3.7 sec

Passing 50 to 70 MPH

4.7 sec

5.2 sec

Top Speed

132 MPH

112 MPH

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 2020/08/13

On the EPA test cycle the CX-9 gets better fuel mileage than the Sienna:

MPG

CX-9

FWD

2.5 turbo 4-cyl.

22 city/28 hwy

AWD

2.5 turbo 4-cyl.

20 city/26 hwy

Sienna

FWD

3.5 DOHC V6

19 city/26 hwy

AWD

3.5 DOHC V6

18 city/24 hwy

Brakes and Stopping

© 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 2020/08/13

The CX-9 stops shorter than the Sienna:

CX-9

Sienna

70 to 0 MPH

178 feet

181 feet

Car and Driver

60 to 0 MPH

121 feet

128 feet

Motor Trend

60 to 0 MPH (Wet)

143 feet

156 feet

Consumer Reports

Tires and Wheels

© 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 2020/08/13

For better traction, the CX-9 has larger tires than the Sienna (255/60R18 vs. 235/60R17).

For better ride, handling and brake cooling the CX-9 Sport/Touring has standard 18-inch wheels. Smaller 17-inch wheels are standard on the Sienna L/LE/XLE. The CX-9 Grand Touring/Signature’s 20-inch wheels are larger than the 19-inch wheels on the Sienna SE.

Suspension and Handling

© 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 2020/08/13

For superior ride and handling, the Mazda CX-9 has fully independent front and rear suspensions. An independent suspension allows the wheels to follow the road at the best angle for gripping the pavement, without compromising ride comfort. The Toyota Sienna has a rear torsion beam axle, with a semi-independent rear suspension.

The CX-9 has variable-assist power steering, for low-effort parking, better control at highway speeds and during hard cornering, and a better feel of the road. The Sienna doesn’t offer variable-assist power steering.

The CX-9’s front to rear weight distribution is more even (54.7% to 45.3%) than the Sienna’s (56.3% to 43.7%). This gives the CX-9 more stable handling and braking.

For greater off-road capability the CX-9 has a 2.2 inches greater minimum ground clearance than the Sienna (8.8 vs. 6.6 inches), allowing the CX-9 to travel over rougher terrain without being stopped or damaged.

Chassis

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The Mazda CX-9 may be more efficient, handle and accelerate better because it weighs about 200 to 350 pounds less than the Toyota Sienna.

Passenger Space

© 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 2020/08/13

The CX-9 has .5 inches more front legroom and 1.8 inches more rear legroom than the Sienna.

Cargo Capacity

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To make loading groceries and cargo easier when your hands are full, the CX-9’s liftgate can be opened and closed just by waving your foot, leaving your hands completely free. The Sienna doesn’t offer a hands-free gesture to open its liftgate, forcing you to put cargo down if your hands are full.

Ergonomics

© 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 2020/08/13

The CX-9 Grand Touring/Signature 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 Sienna doesn’t offer a heads-up display.

The CX-9’s power parking brake sets with one touch and releases with one touch. The Sienna

The CX-9’s power window, power lock and cruise control switches are lit from behind, making them plainly visible and easier to operate at night. The Sienna’s power lock and cruise control switches are unlit, making them difficult to find at night and operate safely.

The CX-9’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 Sienna’s standard manually variable intermittent wipers have to be constantly adjusted.

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 CX-9’s headlights were rated “Good” by the IIHS, while the Sienna’s headlights are rated “Acceptable.”

To help drivers see further while navigating curves, the CX-9 Grand Touring/Signature has standard adaptive headlights to illuminate around corners automatically by reading vehicle speed and steering wheel angle. The Sienna doesn’t offer cornering lights.

The CX-9’s standard outside mirrors include heating elements to clear off the mirrors for better visibility. Toyota only offers heated mirrors on the Sienna LE/SE/XLE/Limited.

The CX-9 has standard heated front seats. Heated front seats are only available on the Sienna SE/XLE/Limited. The CX-9 Grand Touring/Signature also has standard heated second row seats to keep those passengers extremely comfortable in the winter. Heated second row seats aren’t available in the Sienna.

Standard air-conditioned seats in the CX-9 Grand Touring/Signature keep the driver and front passenger comfortable and take the sting out of hot seats in Summer. The Sienna doesn’t offer air-conditioned seats.

Economic Advantages

© 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 2020/08/13

According to The Car Book by Jack Gillis, the CX-9 is less expensive to operate than the Sienna because it costs $327 less to do the manufacturer’s suggested maintenance for 50,000 miles. Typical repairs cost much less on the CX-9 than the Sienna, including $236 less for a starter, $199 less for fuel injection, $103 less for a fuel pump and $276 less for a timing belt/chain.

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 2020/08/13

Consumer Reports® recommends both the Mazda CX-9 and the Toyota Sienna, based on reliability, safety and performance.

The CX-9 was chosen as one of Car and Driver’s “Top Five/10Best Trucks” for 4 of the last 13 years. The Sienna 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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