Compare the2024 Porsche Cayenne CoupeVS 2023 Mercedes AMG GLC Coupe

The Porsche Cayenne Coupe has standard driver and front passenger side knee airbags mounted low on the dashboard. These airbags helps prevent the driver and front passenger from sliding under their seatbelts or the main frontal airbags; this keeps them better positioned during a collision for maximum protection. Knee airbags also help keep the legs from striking the dashboard, preventing knee and leg injuries in the case of a serious frontal collision. The AMG GLC Coupe doesn’t offer a front passenger side knee airbag.

When descending a steep, off-road slope, the Cayenne Coupe’s standard Porsche Hill Control allows you to creep down safely. The AMG GLC Coupe doesn’t offer Porsche Hill Control.

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

The Cayenne Coupe’s standard lane departure warning system alerts a temporarily inattentive driver when the vehicle begins to leave its lane and gently nudges the vehicle back towards its lane. A lane departure warning system costs extra on the AMG GLC Coupe.

Both the Cayenne Coupe and the AMG GLC Coupe 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, blind spot warning systems, rearview cameras, rear cross-path warning and available around view monitors.

The Porsche Cayenne Coupe weighs 507 to 1486 pounds more than the Mercedes AMG GLC Coupe. The NHTSA advises that heavier vehicles are much safer in collisions than their significantly lighter counterparts.

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

A reliable vehicle saves its owner time, money and trouble. Nobody wants to be stranded or have to be without a vehicle while it’s being repaired. Consumer Reports rates the Cayenne Coupe’s reliability 37 points higher than the AMG GLC Coupe.

J.D. Power and Associates’ 2023 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 above average in initial quality. With 34 more problems per 100 vehicles, Mercedes is rated below average.

J.D. Power and Associates’ 2022 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 above average in long-term dependability. With 30 more problems per 100 vehicles in the first three years of ownership, Mercedes is rated below average.

From surveys of all its subscribers, Consumer Reports’ January 2024 Auto Issue reports that Porsche vehicles are more reliable than Mercedes vehicles. Consumer Reports ranks Porsche 21 places higher in reliability than Mercedes.

The Cayenne E-Hybrid Coupe’s standard 3.0 turbo V6 hybrid produces 78 more horsepower (463 vs. 385) and 95 lbs.-ft. more torque (479 vs. 384) than the AMG GLC Coupe’s 3.0 turbo V6. The Cayenne S Coupe’s standard 4.0 turbo V8 produces 83 more horsepower (468 vs. 385) and 58 lbs.-ft. more torque (442 vs. 384) than the AMG GLC Coupe’s 3.0 turbo V6. The Cayenne S E-Hybrid Coupe’s standard 3.0 turbo V6 hybrid produces 127 more horsepower (512 vs. 385) and 169 lbs.-ft. more torque (553 vs. 384) than the AMG GLC Coupe’s 3.0 turbo V6. The Cayenne Turbo E-Hybrid Coupe’s standard 4.0 turbo V8 hybrid produces 344 more horsepower (729 vs. 385) and 316 lbs.-ft. more torque (700 vs. 384) than the AMG GLC Coupe’s 3.0 turbo V6.

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

The Cayenne Coupe S E-Hybrid/Turbo E-Hybrid’s standard fuel tank has 1.1 gallons more fuel capacity than the AMG GLC Coupe (18.5 vs. 17.4 gallons), for longer range between fill-ups. The Cayenne Coupe’s standard fuel tank has 6.3 gallons more fuel capacity than the AMG GLC Coupe (23.7 vs. 17.4 gallons).

The Cayenne Coupe’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 GLC Coupe doesn’t offer launch control.

For better stopping power the Cayenne Coupe CCB’s brake rotors are larger than those on the AMG GLC Coupe:

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

For better traction, the Cayenne Coupe’s optional tires are larger than the largest tires available on the AMG GLC Coupe (F:285/45R21 & R:315/40R21 vs. F:255/45R20 & R:285/40R20).

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

The Cayenne Coupe 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 AMG GLC Coupe doesn’t offer an active sway bar system.

The Cayenne Coupe 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 GLC Coupe.

For better maneuverability, the Cayenne Turbo GT’s turning circle is 1.7 feet tighter than the AMG GLC Coupe’s (38 feet vs. 39.7 feet).

The front grille of the Cayenne Coupe 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 GLC Coupe doesn’t offer active grille shutters.

The Cayenne Coupe has .3 inches more front legroom, 1.8 inches more front shoulder room and 2.8 inches more rear legroom than the AMG GLC Coupe.

The Cayenne Coupe has a much larger cargo volume with its rear seat up than the AMG GLC Coupe with its rear seat up (20.9 vs. 17.6 cubic feet). The Cayenne Coupe has a much larger cargo volume with its rear seat folded than the AMG GLC Coupe with its rear seat folded (53 vs. 36.1 cubic feet).

The Cayenne Coupe’s standard towing capacity is much higher than the AMG GLC Coupe’s (7700 vs. 3500 pounds).

A trailer sway control is standard on the Cayenne Coupe, using the Porsche Stability Management sensors to detect trailer sway, then uses individual brakes to counteract any swaying and help keep the tow vehicle and trailer steady. A trailer sway program costs extra on the AMG GLC Coupe.

J.D. Power and Associates surveys of service recipients show that Porsche service is better than Mercedes. J.D. Power ranks Porsche third in service department satisfaction. With a 30% lower rating, Mercedes is ranked 18th.

The Cayenne Coupe’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 GLC Coupe does not have an oil pressure gauge.

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 Coupe offers available headlight washers to keep headlight output high. The AMG GLC Coupe doesn’t offer headlight washers.

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

The Cayenne Coupe offers optional massaging front seats in order to maximize comfort and eliminate fatigue on long trips. Massaging seats aren’t available in the AMG GLC Coupe.

To quickly and conveniently keep personal devices charged without cables tangling and wearing out, the Porsche Cayenne has a standard wireless phone charging system (Qi) in the center console. Wireless charging costs extra on the AMG GLC Coupe.

The Cayenne Coupe’s optional Active Parking Assistance can parallel park or back into a parking spot by itself, starting, stopping and changing direction automatically. Remote ParkAssist will park and retrieve your car remotely: press a button and watch it park itself. This is ideal for tight locations. The AMG GLC Coupe’s automatic parking system does not offer parking by remote control.

Consumer Reports® recommends the Porsche Cayenne Coupe, based on reliability, safety and performance.