Compare the2022 Audi e-tronVS 2022 Porsche Cayenne

The e-tron’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 e-tron and Cayenne have child safety locks to prevent children from opening the rear doors. The e-tron 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.

The e-tron’s standard lane departure warning system alerts a temporarily inattentive driver when the vehicle begins to leave its lane. A lane departure warning system costs extra on the Cayenne.

The e-tron has a standard blind spot warning system which uses sensors to alert the driver to objects in the vehicle’s blind spots where the side view mirrors don’t reveal them. A system to reveal vehicles in the Cayenne’s blind spot costs extra.

To help make backing out of a parking space safer, the e-tron has a standard rear cross-path warning system, which uses sensors in the rear bumper to alert the driver to vehicles approaching from the side, helping the driver avoid collisions. Rear cross-path warning costs extra on the Cayenne.

Both the e-tron and the Cayenne have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, post-collision automatic braking systems, daytime running lights, rearview cameras, available four-wheel drive, night vision systems and around view monitors.

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 e-tron its highest rating: “Top Safety Pick Plus” for 2021, a rating granted to only 76 vehicles tested by the IIHS. The Cayenne has not been tested, yet.

There are over 57 percent more Audi dealers than there are Porsche dealers, which makes it much easier should you ever need service under the e-tron’s warranty.

The e-tron has more powerful engines than the Cayenne:

As tested in Consumer Reports the Audi e-tron (base engine) is faster than the Porsche Cayenne turbo V6:

On the EPA test cycle the e-tron gets better mileage than the Cayenne running on electricity:

On the EPA test cycle the e-tron gets better mileage than the Cayenne running its gasoline engine:

The e-tron’s maximum EPA estimated driving range is 181 to 222 miles on a full charge. The Cayenne E-Hybrid can only travel about 15 to 17 miles before it has to start its internal combustion engine.

In its Green Vehicle Guide, the U.S. Environmental Protection Agency (EPA) rates the Audi e-tron higher (10 out of 10) than the Porsche Cayenne (3 to 5). This means the e-tron produces up to 36.3 pounds less smog-producing pollutants than the Cayenne every 15,000 miles.

For better stopping power the e-tron’s standard front brake rotors are larger than those on the Cayenne:

In an emergency stopping situation, many drivers don’t press the brakes with enough force to stop the vehicle in the shortest distance. The e-tron has a standard brake assist system to detect emergency braking situations (by how hard and how quickly the brake pedal is pressed) and then automatically apply maximum braking immediately in order to help prevent a collision. The Cayenne doesn’t offer a brake assist feature.

The e-tron’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 Cayenne’s standard 55 series front tires.

For better ride, handling and brake cooling the e-tron has standard 20-inch wheels. Smaller 19-inch wheels are standard on the Cayenne.

The front and rear suspension of the e-tron uses air springs for a smoother, controlled ride than the Cayenne, which uses coil springs. Air springs maintain proper ride height and ride more smoothly.

For a smoother ride and more stable handling, the e-tron’s wheelbase is 1.1 inches longer than on the Cayenne (115.1 inches vs. 114 inches).

The design of the Audi e-tron amounts to more than styling. The e-tron has an aerodynamic coefficient of drag of .3 Cd. That is lower than the Cayenne (.3 to .35) and many sports cars. A more efficient exterior helps keep the interior quieter and helps the e-tron get better fuel mileage.

The e-tron has a much larger cargo volume than the Cayenne with its rear seat up (28.5 vs. 27.2 cubic feet).

Pulling a handle automatically lowers the e-tron’s rear seats, to make changing between passengers and cargo easier. The Cayenne doesn’t offer automatic folding seats.

The e-tron 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.

The e-tron’s standard easy entry system glides the driver’s seat back, making it easier for the driver to get in and out. An easy entry system costs extra on the Cayenne.

If the windows are left open on the e-tron 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 lower the windows from a distance using the keyless remote. 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 e-tron has standard extendable sun visors. The Cayenne doesn’t offer extendable visors.

The e-tron has a standard heated steering wheel to take the chill out of steering on extremely cold winter days before the vehicle heater warms up. A heated steering wheel costs extra on the Cayenne.