Pecheles Automotive Compares 2018 Audi Q7 VS 2018 Lexus GX460 Near Washington, NC

Responsive image

2018 Audi Q7

Responsive image

2018 Audi Q7

VS
Responsive image

2018 Lexus GX460

Safety Comparison

Both the Q7 and GX460 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 GX460’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 GX460 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 GX460 doesn’t offer backup collision prevention brakes.

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 GX460 doesn’t offer a night vision system.

For better protection of the passenger compartment, the Q7 uses safety cell construction with a three-dimensional high-strength frame that surrounds the passenger compartment. It provides extra impact protection and a sturdy mounting location for door hardware and side impact beams. The GX460 uses a body-on-frame design, which has no frame members above the floor of the vehicle.

Both the Q7 and the GX460 have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, front and rear seatbelt pretensioners, height adjustable front shoulder belts, four-wheel antilock brakes, all wheel drive, 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.

For its top level performance in all IIHS frontal, side, rear impact and roof-crush tests, and its standard front crash prevention system, the Insurance Institute for Highway Safety grants the Q7 the rating of “Top Pick” for 2017, a rating granted to only 120 vehicles tested by the IIHS. The GX460 has not been tested, yet.

Warranty Comparison

The Q7’s corrosion warranty is 6 years longer than the GX460’s (12 vs. 6 years).

There are over 23 percent more Audi dealers than there are Lexus dealers, which makes it easier should you ever need service under the Q7’s warranty.

Reliability Comparison

A hardened steel chain, with no maintenance needs, drives the camshafts in the Q7’s engine. A rubber belt that needs periodic replacement drives the GX460’s camshafts. If the GX460’s cam drive belt breaks the engine could be severely damaged when the pistons hit the opened valves.

Engine Comparison

The Q7 3.0T’s standard 3.0 supercharged V6 produces 32 more horsepower (333 vs. 301) than the GX460’s 4.6 DOHC V8.

As tested in Car and Driver the Q7 3.0T is faster than the Lexus GX460:

 

Q7

GX460

Zero to 30 MPH

2.1 sec

2.5 sec

Zero to 60 MPH

5.5 sec

7.4 sec

Zero to 100 MPH

14.5 sec

21.5 sec

5 to 60 MPH Rolling Start

6.4 sec

7.6 sec

Passing 30 to 50 MPH

3.4 sec

3.7 sec

Passing 50 to 70 MPH

4.3 sec

5.1 sec

Quarter Mile

14.2 sec

15.8 sec

Speed in 1/4 Mile

99 MPH

89 MPH

Top Speed

128 MPH

111 MPH

Fuel Economy and Range Comparison

On the EPA test cycle the Q7 3.0T gets better fuel mileage than the GX460 (19 city/25 hwy vs. 15 city/18 hwy).

In heavy traffic or at stoplights the Q7’s engine automatically turns off when the vehicle is stopped, saving fuel and reducing pollution. The engine is automatically restarted when the driver gets ready to move again. (Start/Stop isn’t accounted in present EPA fuel mileage tests.) The GX460 doesn’t offer an automatic engine start/stop system.

To lower fuel costs and make buying fuel easier, the Audi Q7 uses regular unleaded gasoline (premium recommended for maximum performance). The GX460 requires premium, which can cost 20 to 55 cents more per gallon.

Brakes and Stopping Comparison

For better stopping power the Q7’s brake rotors are larger than those on the GX460:

 

Q7

GX460

Front Rotors

14.8 inches

13.3 inches

Rear Rotors

13.8 inches

12.3 inches

The Q7 stops much shorter than the GX460:

 

Q7

GX460

 

70 to 0 MPH

166 feet

184 feet

Car and Driver

60 to 0 MPH

127 feet

136 feet

Consumer Reports

60 to 0 MPH (Wet)

137 feet

143 feet

Consumer Reports

Tires and Wheels Comparison

For better traction, the Q7’s optional tires are larger than the largest tires available on the GX460 (285/45R20 vs. 265/60R18).

The Q7’s optional tires provide better handling because they have a lower 40 series profile (height to width ratio) that provides a stiffer sidewall than the GX460’s 60 series tires.

For better ride, handling and brake cooling the Q7 offers optional 21-inch wheels. The GX460’s largest wheels are only 18-inches.

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 GX460 doesn’t offer run-flat tires.

Suspension and Handling Comparison

For superior ride and handling, the Audi Q7 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 Lexus GX460 has a solid rear axle, with a non-independent rear suspension.

For a smoother ride and more stable handling, the Q7’s wheelbase is 8.1 inches longer than on the GX460 (117.9 inches vs. 109.8 inches).

For better handling and stability, the track (width between the wheels) on the Q7 is 3.7 inches wider in the front and 4.2 inches wider in the rear than on the GX460.

The Q7 Prestige handles at .85 G’s, while the GX460 pulls only .74 G’s of cornering force in a Car and Driver skidpad test.

The Q7 Premium Plus executes Motor Trend’s “Figure Eight” maneuver 1.9 seconds quicker than the GX460 (26.4 seconds @ .68 average G’s vs. 28.3 seconds @ .58 average G’s).

For greater off-road capability the Q7 has a greater minimum ground clearance than the GX460 (8.3 vs. 8.1 inches), allowing the Q7 to travel over rougher terrain without being stopped or damaged. The Q7 w/Air Suspension’s minimum ground clearance is 1.6 inches higher than on the GX460 (9.7 vs. 8.1 inches).

Chassis Comparison

The Audi Q7 may be more efficient, handle and accelerate better because it weighs about 100 to 400 pounds less than the Lexus GX460.

Unibody construction makes the Q7’s chassis much stiffer, which contributes to better handling, and enables softer springs to be used for a better ride. Unibody construction’s stiffness also contributes to better durability and less body squeaks and rattles. The GX460 doesn’t use unibody construction, but a body-on-frame design.

The design of the Audi Q7 amounts to more than styling. The Q7 has an aerodynamic coefficient of drag of .333 Cd (optional .32 Cd with Air Suspension). That is lower than the GX460 (.35) and many sports cars. A more efficient exterior helps keep the interior quieter and helps the Q7 get better fuel mileage.

As tested by Car and Driver, the interior of the Q7 Prestige is quieter than the GX460:

 

Q7

GX460

At idle

43 dB

43 dB

Full-Throttle

70 dB

73 dB

70 MPH Cruising

65 dB

66 dB

Passenger Space Comparison

The Q7 has .4 inches more front headroom, 4.1 inches more front shoulder room, 4.7 inches more rear legroom, 1.2 inches more rear shoulder room and .7 inches more third row headroom than the GX460.

The front step up height for the Q7 is 3.1 inches lower than the GX460 (18.6” vs. 21.7”). The Q7’s rear step up height is 3.3 inches lower than the GX460’s (18.7” vs. 22”).

Cargo Capacity Comparison

The Q7’s cargo area provides more volume than the GX460.

 

Q7

GX460

Behind Third Seat

14.8 cubic feet

11.6 cubic feet

Second Seat Folded

71.6 cubic feet

64.7 cubic feet

A low lift-over cargo hatch design makes loading and unloading the Q7 easier. The Q7’s cargo hatch lift-over height is 32.5 inches, while the GX460’s liftover is 33.8 inches.

The Q7’s liftgate lifts up in one piece, completely out of the way of loading and unloading, while sheltering the cargo loading area. The GX460’s swing out door blocks loading from the passenger’s side.

To make loading and unloading groceries and cargo easier when your hands are full, the Q7’s power cargo door can be opened or closed just by waving your foot, leaving your hands completely free. The GX460 doesn’t offer a power or hands-free opening cargo door.

Ergonomics Comparison

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 GX460 doesn’t offer a heads-up display.

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 GX460’s standard manually variable intermittent wipers have to be constantly adjusted.

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 GX460 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 GX460 doesn’t offer a rear sunshade.

The Q7’s power mirror controls are mounted on the armrest for easy access. The GX460’s power mirror controls are on the dash, hidden behind the steering wheel, where they are awkward to manipulate.

Economic Advantages Comparison

Insurance will cost less for the Q7 owner. The Car Book by Jack Gillis rates the Q7 with a number “8” insurance rate while the GX460 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 GX460 because typical repairs cost less on the Q7 than the GX460, including $200 less for a water pump and $135 less for a starter.

Recommendations Comparison

Both are recommended, but Consumer Reports® chose the Audi Q7 as its “Top Pick,” the highest scoring vehicle in its category, based on reliability, safety and performance.

The Audi Q7 outsold the Lexus GX460 by 31% during the 2017 model year.

© 1991-2016 Advanta-STAR Automotive Research. All rights reserved. Who We Are
Click here to view the disclaimers, limitations and notices about EPA fuel mileage, crash tests, coprights, trademarks, and other issues.