2018 Infiniti Q70 vs. 2018 Toyota Avalon

Detailed Review, Specifications & Comparison

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Over 200 people are killed each year when backed over by motor vehicles. The Q70 offers optional Backup Collision Intervention which use rear sensors to monitor and automatically apply the brakes to prevent a rear collision. The Avalon doesn’t offer backup collision prevention brakes.

The Q70 offers all-wheel drive to maximize traction under poor conditions, especially in ice and snow. The Avalon doesn’t offer all-wheel drive.

The Q70 offers an optional Around View® Monitor to allow the driver to see objects all around the vehicle on a screen. The Avalon only offers a rear monitor.

Both the Q70 and the Avalon have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, front seatbelt pretensioners, height adjustable front shoulder belts, 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 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 Infiniti Q70 is safer than the Toyota Avalon:







5 Stars

4 Stars

Neck Injury Risk



Neck Stress

191 lbs.

354 lbs.

Neck Compression

10 lbs.

16 lbs.




4 Stars

4 Stars




Neck Injury Risk



Neck Stress

166 lbs.

188 lbs.

Neck Compression

65 lbs.

108 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 Infiniti Q70 is safer than the Toyota Avalon:





Front Seat


5 Stars

5 Stars




Abdominal Force

211 G’s

227 G’s


Into Pole


5 Stars

5 Stars




Spine Acceleration

30 G’s

45 G’s

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


The Q70 comes with a full 4-year/60,000-mile basic warranty, which covers the entire car and includes 24-hour roadside assistance. The Avalon’s 3-year/36,000-mile basic warranty expires 1 year and 24,000 miles sooner.

Infiniti’s powertrain warranty covers the Q70 1 year and 10,000 miles longer than Toyota covers the Avalon. Any repair needed on the engine, transmission, axles, joints or driveshafts is fully covered for 6 years or 70,000 miles. Coverage on the Avalon ends after only 5 years or 60,000 miles.

The Q70’s corrosion warranty is 2 years longer than the Avalon’s (7 vs. 5 years).


The Q70 3.7 LUXE’s standard 3.7 DOHC V6 produces 62 more horsepower (330 vs. 268) and 22 lbs.-ft. more torque (270 vs. 248) than the Avalon’s 3.5 DOHC V6. The Q70 Hybrid LUXE’s standard 3.5 DOHC V6 hybrid produces 92 more horsepower (360 vs. 268) than the Avalon’s 3.5 DOHC V6. The Q70 5.6 LUXE’s standard 5.6 DOHC V8 produces 152 more horsepower (420 vs. 268) and 169 lbs.-ft. more torque (417 vs. 248) than the Avalon’s 3.5 DOHC V6.

As tested in Consumer Reports the Infiniti Q70 is faster than the Toyota Avalon:


Q70 3.7

Q70 Hybrid


Zero to 30 MPH

2.3 sec

2.4 sec

2.9 sec

Zero to 60 MPH

5.8 sec

5.6 sec

7 sec

Quarter Mile

14.2 sec

14.2 sec

15.2 sec

Speed in 1/4 Mile

101.2 MPH

101.5 MPH

97.7 MPH

Fuel Economy and Range

The Q70 3.7/5.6’s standard fuel tank has 3 gallons more fuel capacity than the Avalon (20 vs. 17 gallons).


A seven-speed automatic is standard on the Infiniti Q70, for better acceleration and lower engine speed on the highway. Only a six-speed automatic is available for the Avalon.

Brakes and Stopping

For better stopping power the Q70’s brake rotors are larger than those on the Avalon:



Q70 Sport


Front Rotors

12.6 inches

14 inches

11.7 inches

Rear Rotors

12.1 inches

13.8 inches

11.1 inches

The Q70’s standard front and rear disc brakes are vented to help dissipate heat for shorter stops with less fading. The rear discs on the Avalon are solid, not vented.

The Q70 stops much shorter than the Avalon:





70 to 0 MPH

164 feet

178 feet

Car and Driver

60 to 0 MPH

108 feet

122 feet

Motor Trend

60 to 0 MPH (Wet)

143 feet

148 feet

Consumer Reports

Tires and Wheels

For better traction, the Q70 has larger tires than the Avalon (245/40R20 vs. 215/55R17). The Q70’s optional tires are larger than the largest tires available on the Avalon (245/40R20 vs. 225/45R18).

The Q70’s standard tires provide better handling because they have a lower 50 series profile (height to width ratio) that provides a stiffer sidewall than the Avalon XLE’s standard 55 series tires. The Q70’s optional tires have a lower 40 series profile than the Avalon Touring/Limited’s 45 series tires.

For better ride, handling and brake cooling the Q70 has standard 18-inch wheels. Smaller 17-inch wheels are standard on the Avalon XLE. The Q70’s optional 20-inch wheels are larger than the 18-inch wheels on the Avalon Touring/Limited.

Suspension and Handling

For a smoother ride and more stable handling, the Q70’s wheelbase is 3.2 inches longer than on the Avalon (114.2 inches vs. 111 inches). The Q70L’s wheelbase is 9.1 inches longer than on the Avalon (120.1 inches vs. 111 inches).

The Q70 3.7 LUXE handles at .89 G’s, while the Avalon Limited pulls only .81 G’s of cornering force in a Motor Trend skidpad test.

The Q70 3.7 LUXE executes Motor Trend’s “Figure Eight” maneuver 1.8 seconds quicker than the Avalon Limited (25.9 seconds @ .7 average G’s vs. 27.7 seconds @ .64 average G’s).

For better maneuverability, the Q70’s turning circle is 3.3 feet tighter than the Avalon’s (36.7 feet vs. 40 feet). The Q70 AWD’s turning circle is 2.6 feet tighter than the Avalon’s (37.4 feet vs. 40 feet).


To almost totally eliminate engine vibration in the passenger area, the Q70 has liquid-filled engine mounts. The liquid helps further dampen engine harshness. The Avalon uses conventional solid rubber engine mounts.

The Q70 uses computer-generated active noise cancellation to help remove annoying noise and vibration from the passenger compartment, especially at low frequencies. The Avalon doesn’t offer active noise cancellation.

Passenger Space

The Q70L has 7 cubic feet more passenger volume than the Avalon (110.6 vs. 103.6).

The Q70 has .6 inches more front headroom, 2.3 inches more front legroom and .2 inches more front shoulder room than the Avalon.

Servicing Ease

The engine in the Q70 is mounted longitudinally (North-South), instead of sideways, as in the Avalon. This makes it easier to service and maintain, because there are no rear spark plugs and the accessory belts are in front.


If the windows are left down on the Q70 the driver can raise them all using the key in the outside lock cylinder. On a hot day the driver can lower the windows from outside the vehicle using the key in the outside lock cylinder or the keyless remote. The driver of the Avalon can only operate the windows from inside the vehicle, with the ignition on.

The Q70’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 Avalon XLE/Touring’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 Q70’s standard headlights were rated “Acceptable” by the IIHS, while the Avalon’s headlights are rated “Marginal” to “Poor.”

To help drivers see further while navigating curves, the Q70 offers optional adaptive headlights to illuminate around corners automatically by reading vehicle speed and steering wheel angle. The Avalon doesn’t offer cornering lights.

On extremely cold Winter days, the Q70’s optional heated steering wheel provides comfort, allowing the driver to steer safely and comfortably before the car heater warms up. The Avalon doesn’t offer a heated steering wheel.

Economic Advantages

Insurance will cost less for the Q70 owner. The Car Book by Jack Gillis rates the Q70 with a number “5” insurance rate while the Avalon is rated higher at a number “8” rate.

According to The Car Book by Jack Gillis, the Q70 is less expensive to operate than the Avalon because it costs $162 less to do the manufacturer’s suggested maintenance for 50,000 miles. Typical repairs cost much less on the Q70 than the Avalon, including $34 less for a starter, $8 less for a fuel pump and $510 less for a timing belt/chain.


Consumer Reports® recommends both the Infiniti Q70 and the Toyota Avalon, based on reliability, safety and performance.

J.D. Power and Associates rated the Q70 second among midsize premium cars in owner reported satisfaction. This includes how well the vehicle performs and satisfies its owner’s expectations. The Avalon isn’t in the top three in its category.

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

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