2019 Audi Q7 vs. 2019 Porsche Cayenne

Detailed Review, Specifications & Comparison

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Safety

The Q7’s pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The Cayenne doesn’t offer pre-crash pretensioners.

Both the Q7 and Cayenne 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 Cayenne’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.

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 Cayenne doesn’t offer backup collision prevention brakes.

Both the Q7 and the Cayenne have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, height-adjustable front shoulder belts, four-wheel antilock brakes, all-wheel drive, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, post-collision automatic braking systems, daytime running lights, rearview cameras, available night vision systems, 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 with its optional 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 139 vehicles tested by the IIHS. The Cayenne has not been tested, yet.

Warranty

There are over 59 percent more Audi dealers than there are Porsche dealers, which makes it much easier should you ever need service under the Q7’s warranty.

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 42 points higher than the Cayenne.

From surveys of all its subscribers, Consumer Reports’ December 2018 Auto Issue reports that Audi vehicles are more reliable than Porsche vehicles. Consumer Reports ranks Audi 4 places higher in reliability than Porsche.

Fuel Economy and Range

On the EPA test cycle the Q7 55 TFSI V6 gets better highway fuel mileage than the Cayenne with its standard turbo V6 (19 city/25 hwy vs. 19 city/23 hwy).

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

The Q7 has 2.7 gallons more fuel capacity than the Cayenne Hybrid’s standard fuel tank (22.5 vs. 19.8 gallons), for longer range between fill-ups.

Brakes and Stopping

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

 

Q7

Cayenne

Front Rotors

14.8 inches

13.8 inches

Rear Rotors

13.8 inches

13 inches

Tires and Wheels

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 Cayenne doesn’t offer run-flat tires.

Suspension and Handling

For a smoother ride and more stable handling, the Q7’s wheelbase is 3.9 inches longer than on the Cayenne (117.9 inches vs. 114 inches).

For greater off-road capability the Q7 has a greater minimum ground clearance than the Cayenne (8.3 vs. 8.2 inches), allowing the Q7 to travel over rougher terrain without being stopped or damaged. The Q7 w/Air Suspension’s minimum ground clearance is 1.3 inches higher than on the Cayenne Air Suspension (9.7 vs. 8.4 inches).

Chassis

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 Cayenne (.34 to .35) and many sports cars. A more efficient exterior helps keep the interior quieter and helps the Q7 get better fuel mileage.

Passenger Space

The Q7 has standard seating for 7 passengers; the Cayenne can only carry 5.

Cargo Capacity

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

 

Q7

Cayenne

Third Seat Folded

37.5 cubic feet

n/a

Third Seat Removed

n/a

27.1 cubic feet

Second Seat Folded

71.6 cubic feet

60.3 cubic feet

The Q7’s cargo area is larger than the Cayenne’s in almost every dimension:

 

Q7

Cayenne

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

19.5”/44.7”/80.7”

n.a./39.6”/74.9”

Max Width

52.5”

42”

Min Width

42.6”

42”

Ergonomics

The Q7 has a standard remote vehicle starting system, so the vehicle can be started from inside the driver's house. This allows the driver to comfortably warm up the engine before going out to the vehicle. The climate system will also automatically heat or cool the interior. The Cayenne doesn’t offer a remote starting system.

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 Cayenne can only operate the windows from inside the vehicle, with the ignition on.

To shield the driver and front passenger’s vision over a larger portion of the windshield and side windows, the Q7 has standard extendable sun visors. The Cayenne doesn’t offer extendable visors.

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

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 Cayenne has never been a Car and Driver “Top Five/10Best Truck” pick.

The Audi Q7 outsold the Porsche Cayenne by almost four to one during the 2018 model year.

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

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