2019 Porsche Cayenne vs. 2019 BMW X6

Detailed Review, Specifications & Comparison

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For enhanced safety, the front seat shoulder belts of the Porsche Cayenne are height-adjustable to accommodate a wide variety of driver and passenger heights. A better fit can prevent injuries and the increased comfort also encourages passengers to buckle up. The BMW X6 doesn’t offer height-adjustable seat belts.

The Cayenne has a standard Multi-collision Brake System, which automatically applies the brakes in the event of a crash to help prevent secondary collisions and prevent further injuries. The X6 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.

To provide maximum traction and stability on all roads, All-Wheel Drive is standard on the Cayenne. But it costs extra on the X6.

To help make backing safer, the Cayenne’s optional cross-path warning system uses wide-angle radar in the rear bumper to alert the driver to vehicles approaching from the side, helping the driver avoid collisions. The X6 doesn’t offer a cross-path warning system.

Both the Cayenne and the X6 have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, rearview cameras, available night vision systems, lane departure warning systems, blind spot warning systems and around view monitors.


J.D. Power and Associates’ 2018 Initial Quality Study of new car owners surveyed provide the statistics that show that Porsche vehicles are better in initial quality than BMW vehicles. J.D. Power ranks Porsche fourth in initial quality, above the industry average. With 8 more problems per 100 vehicles, BMW is ranked 11th.

J.D. Power and Associates’ 2018 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Porsche vehicles are more reliable than BMW vehicles. J.D. Power ranks Porsche second in reliability, above the industry average. With 27 more problems per 100 vehicles, BMW is ranked 8th.


The Cayenne has more powerful engines than the X6:




Cayenne 3.0 turbo V6

335 HP

332 lbs.-ft.

Cayenne S 2.9 turbo V6

434 HP

406 lbs.-ft.

Cayenne E-Hybrid 3.0 turbo V6 hybrid

455 HP

516 lbs.-ft.

Cayenne Turbo 4.0 turbo V8

541 HP

568 lbs.-ft.

X6 s/xDrive35i 3.0 turbo 6 cyl.

302 HP

295 lbs.-ft.

X6 xDrive50i 4.4 turbo V8

445 HP

479 lbs.-ft.

Fuel Economy and Range

The Cayenne E-Hybrid can drive on battery power alone for up to 27 miles. The X6 must run its internal combustion engine to move.

The Cayenne’s standard fuel tank has 1.3 gallons more fuel capacity than the X6 (23.7 vs. 22.4 gallons).

Brakes and Stopping

For better stopping power the Cayenne’s brake rotors are larger than those on the X6:




X6 s/xDrive35i

X6 xDrive50i

Front Rotors

13.8 inches

17.3 inches

13.7 inches

14.4 inches

Rear Rotors

13 inches

16.1 inches

12.6 inches

13.6 inches

The Cayenne offers optional heat-treated ceramic brake rotors, which last ten to twenty times as long as conventional cast iron rotors, don’t rust, don’t fade during repeated high speed braking, and their lighter weight contribute to better braking, handling and acceleration. The X6 doesn’t offer ceramic brake rotors.

The Cayenne Turbo has standard air brakes, which adjust the spoiler automatically during high-speed braking in order to shorten stopping distances. The X6 doesn’t offer air brakes.

Tires and Wheels

For better traction, the Cayenne’s optional front tires are larger than the largest tires available on the X6 (F:285/40R21 & R:315/35R21 vs. F:275/40R20 & R:315/35R20).

For better ride, handling and brake cooling the Cayenne offers optional 22-inch wheels. The X6’s largest wheels are only 21-inches.

Suspension and Handling

The Cayenne offers active sway bars, which help keep it flat and controlled during cornering, but disconnect at lower speeds to smooth the ride and offer greater off-road suspension articulation. This helps keep the tires glued to the road on-road and off. The X6 doesn’t offer an active sway bar system.

For better handling and stability, the average track (width between the wheels) on the Cayenne is 1.8 inches wider in the front than the track on the X6.

For better maneuverability, the Cayenne’s turning circle is 2.3 feet tighter than the X6’s (39.7 feet vs. 42 feet).

For greater off-road capability the Cayenne Air Suspension has a greater minimum ground clearance than the X6 (8.4 vs. 8.3 inches), allowing the Cayenne to travel over rougher terrain without being stopped or damaged.


The Porsche Cayenne may be more efficient, handle and accelerate better because it weighs up to about 200 pounds less than the BMW X6.

The front grille of the Cayenne uses electronically controlled shutters to close off airflow and reduce drag when less engine cooling is needed. This helps improve highway fuel economy. The X6 doesn’t offer active grille shutters.

Passenger Space

For enhanced passenger comfort on long trips the Cayenne’s rear seats recline. The X6’s rear seats don’t recline.

Cargo Capacity

The Cayenne has a larger cargo volume with its rear seat up than the X6 with its rear seat up (27.1 vs. 26.6 cubic feet). The Cayenne has a larger cargo volume with its rear seat folded than the X6 with its rear seat folded (60.3 vs. 59.7 cubic feet).

Payload and Towing

The Cayenne’s standard towing capacity is much higher than the X6’s (7700 vs. 6000 pounds).

The Cayenne has a much higher standard payload capacity than the X6 (1674 vs. 1110 lbs.).

The Cayenne has a much higher maximum payload capacity than the X6 (1862 vs. 1110 lbs.).

Servicing Ease

J.D. Power and Associates surveys of service recipients show that Porsche service is better than BMW. J.D. Power ranks Porsche second in service department satisfaction. With a 17% lower rating, BMW is ranked 8th.


The Cayenne’s instruments include an oil pressure gauge and a temperature gauge – which could save your engine! Often ‘idiot lights’ don’t warn you until damage has been done. The X6 does not have an oil pressure gauge.

To improve rear visibility by keeping the rear window clear, the Cayenne has a standard rear wiper. The X6 doesn’t offer a rear wiper.

To better shield the driver and front passenger’s vision, the Cayenne has standard dual-element sun visors that can block glare from two directions simultaneously. The X6 doesn’t offer secondary sun visors.

Optional air conditioned front and rear seats keep the Cayenne’s passengers comfortable and take the sting out of hot leather in summer. The X6 doesn’t offer air-conditioned seats in the rear.


The Porsche Cayenne outsold the BMW X6 by 56% during 2018.

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

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