2019 Porsche Cayenne vs. 2019 Mercedes AMG GLE 63

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 AMG GLE 63 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 AMG GLE 63 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 AMG GLE 63 doesn’t offer a cross-path warning system.

Both the Cayenne and the AMG GLE 63 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 AMG GLE 63’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 Turbo’s 4.0 turbo V8 produces 7 lbs.-ft. more torque (568 vs. 561) than the AMG GLE 63 S’ optional 5.5 turbo V8.

Fuel Economy and Range

On the EPA test cycle the Cayenne gets better fuel mileage than the AMG GLE 63:

 

 

Cayenne

AMG GLE 63

 

 

3.0 turbo V6/8-spd. Auto

19 city/23 hwy

14 city/18 hwy

5.5 twin turbo V8/Auto

 

2.9 twin turbo V6/8-spd. Auto

18 city/23 hwy

12 city/18 hwy

5.5 twin turbo V8/Auto

The Cayenne E-Hybrid can drive on battery power alone for up to 27 miles. The AMG GLE 63 must run its internal combustion engine to move.

Regenerative brakes improve the Cayenne’s fuel efficiency by converting inertia back into energy instead of wasting it. The AMG GLE 63 doesn’t offer a regenerative braking system.

Transmission

An eight-speed automatic is standard on the Porsche Cayenne, for better acceleration and lower engine speed on the highway. Only a seven-speed automatic is available for the AMG GLE 63.

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 AMG GLE 63 doesn’t offer launch control.

Brakes and Stopping

For better stopping power the Cayenne’s front brake rotors are larger than those on the AMG GLE 63:

 

Cayenne

AMG GLE 63

Front Rotors

17.3 inches

15.4 inches

Rear Rotors

16.1 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 AMG GLE 63 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 AMG GLE 63 doesn’t offer air brakes.

Tires and Wheels

For better traction and acceleration, the Cayenne has larger standard rear tires than the AMG GLE 63 (275/50R19 vs. 265/45R20). The Cayenne’s optional rear tires are larger than the largest rear tires available on the AMG GLE 63 (315/35R21 vs. 295/35R21).

The Cayenne’s optional 315/30R22 rear tires provide better handling because they have a lower 30 series profile (height to width ratio) that provides a stiffer sidewall than the AMG GLE 63’s optional 35 series tires.

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 AMG GLE 63.

The Cayenne handles at .96 G’s, while the AMG GLE 63 S Coupe pulls only .95 G’s of cornering force in a Car and Driver skidpad test.

Chassis

The Porsche Cayenne may be more efficient, handle and accelerate better because it weighs about 300 to 850 pounds less than the Mercedes AMG GLE 63.

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 AMG GLE 63 doesn’t offer active grille shutters.

Cargo Capacity

The Cayenne has a much larger cargo volume than the AMG GLE 63 Coupe with its rear seat up (27.1 vs. 23 cubic feet).

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 AMG GLE 63 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 AMG GLE 63’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 AMG GLE 63 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 AMG GLE 63 doesn’t offer a heads-up display.

To improve rear visibility by keeping the rear window clear, the Cayenne has a standard rear wiper. The AMG GLE 63 Coupe doesn’t offer a rear wiper.

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 AMG GLE 63 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 AMG GLE 63 doesn’t offer air-conditioned seats in the rear.

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

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