2019 Porsche Cayenne vs. 2019 Mercedes GLE

Detailed Review, Specifications & Comparison

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Safety

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 GLE 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.

A passive infrared night vision system optional on the Cayenne 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 GLE doesn’t offer a night vision system.

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 GLE doesn’t offer a cross-path warning system.

Both the Cayenne and the GLE have standard driver and passenger frontal airbags, front side-impact airbags, driver knee 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, daytime running lights, rearview cameras, available lane departure warning systems, blind spot warning systems and around view monitors.

Warranty

The Cayenne’s corrosion warranty is 7 years longer than the GLE’s (12 vs. 5 years).

Reliability

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 Mercedes vehicles. J.D. Power ranks Porsche fourth in initial quality, above the industry average. With 13 more problems per 100 vehicles, Mercedes is ranked 14th.

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 Mercedes vehicles. J.D. Power ranks Porsche second in reliability, above the industry average. With 47 more problems per 100 vehicles, Mercedes is ranked 15th.

From surveys of all its subscribers, Consumer Reports’ December 2018 Auto Issue reports that Porsche vehicles are more reliable than Mercedes vehicles. Consumer Reports ranks Porsche 6 places higher in reliability than Mercedes.

Engine

The Cayenne has more powerful engines than the GLE:

 

Horsepower

Torque

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.

GLE 400 3.0 turbo V6

329 HP

354 lbs.-ft.

AMG GLE 43 3.0 turbo V6

385 HP

384 lbs.-ft.

As tested in Car and Driver the Porsche Cayenne turbo V6 is faster than the AMG GLE 43:

 

Cayenne

GLE

Zero to 60 MPH

4.8 sec

5.4 sec

Zero to 100 MPH

12.5 sec

14.7 sec

5 to 60 MPH Rolling Start

5.8 sec

6.5 sec

Quarter Mile

13.5 sec

14.1 sec

Speed in 1/4 Mile

103 MPH

98 MPH

Top Speed

157 MPH

130 MPH

Fuel Economy and Range

On the EPA test cycle the Cayenne gets better fuel mileage than the GLE:

 

 

Cayenne

GLE

 

 

3.0 turbo V6/8-spd. Auto

19 city/23 hwy

17 city/23 hwy

3.0 twin turbo V6/Auto

 

2.9 twin turbo V6/8-spd. Auto

18 city/23 hwy

17 city/23 hwy

3.0 twin turbo V6/Auto

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

Regardless of its engine, regenerative brakes improve the Cayenne’s fuel efficiency by converting inertia back into energy instead of wasting it. Mercedes only offers a regenerative brake system on the GLE Hybrid.

Transmission

The Cayenne’s optional launch control uses engine electronics to hold engine RPM’s precisely in order to provide the most stable and rapid acceleration possible, using all of the available traction. The GLE doesn’t offer launch control.

Brakes and Stopping

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

 

Cayenne

GLE

AMG GLE 43

Front Rotors

17.3 inches

13.8 inches

14.8 inches

Rear Rotors

16.1 inches

13 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 GLE 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 GLE doesn’t offer air brakes.

The Cayenne stops much shorter than the GLE:

 

Cayenne

GLE

 

70 to 0 MPH

159 feet

172 feet

Car and Driver

Tires and Wheels

For better traction, the Cayenne’s optional tires are larger than the largest tires available on the GLE (F:285/40R21 & R:315/35R21 vs. 265/45R20).

The Cayenne’s optional 285/35R22 front and 315/30R22 rear tires provide better handling because they have a lower 35 series front and 30 series rear profile (height to width ratio) that provides a stiffer sidewall than the AMG GLE 43’s optional 40 series tires.

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

Suspension and Handling

The Cayenne offers an available adjustable active suspension system, which counteracts cornering forces actively, limiting body roll and improving handling and stability. Mercedes doesn’t offer an active suspension on the GLE.

For better handling and stability, the average track (width between the wheels) on the Cayenne is 1.3 inches wider in the front and .4 inches wider in the rear than the average track on the GLE.

The Cayenne handles at .96 G’s, while the AMG GLE 43 pulls only .77 G’s of cornering force in a Car and Driver skidpad test.

For greater off-road capability the Cayenne has a greater minimum ground clearance than the GLE (8.2 vs. 8 inches), allowing the Cayenne to travel over rougher terrain without being stopped or damaged.

Chassis

The Porsche Cayenne may be more efficient, handle and accelerate better because it weighs up to about 350 pounds less than the Mercedes GLE.

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 GLE doesn’t offer active grille shutters.

Passenger Space

The front step up height for the Cayenne is 3.3 inches lower than the GLE (16.75” vs. 20”). The Cayenne’s rear step up height is 4 inches lower than the GLE’s (16” vs. 20”).

Cargo Capacity

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

 

Cayenne

GLE

Length to seat (2nd/1st)

39.6”/74.9”

39.5”/68”

Min Width

42”

40.5”

To make loading groceries and cargo easier when your hands are full, the Cayenne’s available liftgate can be opened and closed just by kicking your foot under the back bumper, leaving your hands completely free. The GLE doesn’t offer a hands-free gesture to open its liftgate, forcing you to put cargo down if your hands are full.

Towing

The Cayenne’s standard towing capacity is much higher than the GLE’s (7700 vs. 7200 pounds).

Servicing Ease

J.D. Power and Associates surveys of service recipients show that Porsche service is better than Mercedes. J.D. Power ranks Porsche second in service department satisfaction. With a 6% lower rating, Mercedes is ranked 6th.

Ergonomics

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 GLE does not have an oil pressure gauge.

The Cayenne offers an optional 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 GLE doesn’t offer a heads-up display.

In poor weather, headlights can lose their effectiveness as grime builds up on their lenses. This can reduce visibility without the driver realizing. The Cayenne offers available headlight washers to keep headlight output high. The GLE doesn’t offer headlight washers.

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

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

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