Certified Benz & Beemer Compares 2012 BMW X6 VS 2012 Porsche Cayenne Near Scottsdale, AZ

Responsive image

2012 BMW X6

Responsive image

2012 Porsche Cayenne

Safety Comparison

The X6 has standard Active Head Restraints, which use a specially designed headrest to protect the driver and front passenger from whiplash. During a rear-end collision, the Active Head Restraints system moves the headrests forward to prevent neck and spine injuries. The Cayenne doesn’t offer a whiplash protection system.

The X6’s optional lane departure warning system alerts a temporarily inattentive driver when the vehicle begins to leave its lane. The Cayenne doesn’t offer a lane departure warning system.

The X6 offers an optional Top View to allow the driver to see objects all around the vehicle on a screen. The Cayenne only offers a rear monitor and front and rear parking sensors that beep or flash a light. That doesn’t help with obstacles to the sides.

The X6 has standard BMW Assist, which uses a global positioning satellite (GPS) receiver and a cellular system to remotely unlock your doors if you lock your keys in, help track down your vehicle if it’s stolen or send emergency personnel to the scene if any airbags deploy. The Cayenne doesn’t offer a GPS response system, only a navigation computer with no live response for emergencies, so if you’re involved in an accident and you’re incapacitated help may not come as quickly.

Both the X6 and the Cayenne have standard driver and passenger frontal airbags, front side-impact airbags, head airbags, front seatbelt pretensioners, plastic fuel tanks, four wheel antilock brakes, all wheel drive, traction control and electronic stability systems to prevent skidding.

Warranty Comparison

The X6’s corrosion warranty is 2 years longer than the Cayenne’s (12 vs. 10 years).

BMW pays for scheduled maintenance on the X6 for 4 years and 50,000 miles. BMW will pay for oil changes, tire rotation, lubrication and any other scheduled maintenance. Porsche doesn’t pay scheduled maintenance for the Cayenne.

There are over 74 percent more BMW dealers than there are Porsche dealers, which makes it much easier to get service under the X6’s warranty.

Reliability Comparison

The camshafts in the X6’s engine are driven by a hardened steel chain, with no maintenance needs. The Cayenne Hybrid 3.6 DOHC V6 hybrid, Cayenne 3.0 DOHC V6 hybrid’s camshafts are driven by a rubber belt that needs periodic replacement. If the Cayenne’s cam drive belt breaks the engine could be severely damaged when the pistons hit the opened valves.

J.D. Power and Associates rated the X6 third among midsize premium crossover/SUV’s in their 2011 Initial Quality Study. The Cayenne isn’t in the top three.

Engine Comparison

The X6 has more powerful engines than the Cayenne:


X6 xDrive50i 4.4 turbo V8

450 lbs.-ft.

ACTIVEHYBRID X6 4.4 turbo V8

575 lbs.-ft.

Cayenne Hybrid 3.6 DOHC V6 hybrid

427 lbs.-ft.

Cayenne 3.0 DOHC V6 hybrid

428 lbs.-ft.

Cayenne S 4.8 DOHC V8

369 lbs.-ft.

Cayenne Turbo 4.8 turbo V8

516 lbs.-ft.

Fuel Economy and Range Comparison

On the EPA test cycle the X6 xDrive35i gets better fuel mileage than the Cayenne S V8 (16 city/23 hwy vs. 16 city/22 hwy).

Tires and Wheels Comparison

For better traction, the X6’s optional tires are larger than the largest tires available on the Cayenne (F:275/40R20 & R:315/35R20 vs. 265/50R19).

The X6’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 tires. The X6’s optional 275/40R20 front and 315/35R20 rear tires have a lower 40 series front and 35 series rear profile than the Cayenne’s optional 50 series tires.

For better ride, handling and brake cooling the X6 has standard 19 inch wheels. Smaller 18 inch wheels are standard on the Cayenne.

Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires standard on the X6 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 Comparison

The X6 has a standard automatic rear load leveling suspension to keep ride height level with a heavy load or when towing. The Cayenne doesn’t offer a load leveling suspension.

For a smoother ride and more stable handling, the X6’s wheelbase is 1.5 inches longer than on the Cayenne (115.5 inches vs. 114 inches).

For better handling and stability, the track (width between the wheels) on the X6 is 1.5 inches wider in the rear than on the Cayenne.

The X6 xDrive50i handles at .90 G’s, while the Cayenne S pulls only .89 G’s of cornering force in a Road & Track skidpad test.

Passenger Space Comparison

The X6 has 1.4 inches more front shoulder room and .3 inches more rear shoulder room than the Cayenne.

Cargo Capacity Comparison

The X6 has a much larger cargo area than the Cayenne with its rear seat up (25.6 vs. 23.7 cubic feet).

© 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.