2018 Porsche Panamera vs. 2018 Mercedes AMG C 63 Sedan

Detailed Review, Specifications & Comparison

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Safety

Both the Panamera and AMG C 63 Sedan have child safety locks to prevent children from opening the rear doors. The Panamera offers optional power child safety locks, allowing the driver to activate and deactivate them from the driver's seat and to know when they're engaged. The AMG C 63 Sedan’s child locks have to be individually engaged at each rear door with a manual switch. The driver can’t know the status of the locks without opening the doors and checking them.

The Panamera offers available whiplash protection, which use a specially designed headrest to protect the driver and front passenger from whiplash. During a rear-end collision, the whiplash protection system moves the headrests forward to prevent neck and spine injuries. The AMG C 63 Sedan doesn’t offer a whiplash protection system.

The Panamera offers all-wheel drive to maximize traction under poor conditions, especially in ice and snow. The AMG C 63 Sedan doesn’t offer all-wheel drive.

A passive infrared night vision system optional on the Panamera 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 and even aims one of the vehicle’s headlights in the direction of the person or object. The AMG C 63 Sedan doesn’t offer a night vision system.

Both the Panamera and the AMG C 63 Sedan have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, front seatbelt pretensioners, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights, rearview cameras, available crash mitigating brakes, lane departure warning systems, blind spot warning systems and around view monitors.

Warranty

The Panamera’s corrosion warranty is 7 years longer than the AMG C 63 Sedan’s (12 vs. 5 years).

Reliability

J.D. Power and Associates’ 2017 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 third in initial quality, above the industry average. With 24 more problems per 100 vehicles, Mercedes is ranked 17th, below the industry average.

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’ April 2018 Auto Issue reports that Porsche vehicles are more reliable than Mercedes vehicles. Consumer Reports ranks Porsche 1 place higher in reliability than Mercedes.

Engine

The Panamera has more powerful engines than the AMG C 63 Sedan:

 

Horsepower

Torque

Panamera 4 E-Hybrid 2.9 turbo V6

462 HP

516 lbs.-ft.

Panamera Turbo 4.0 turbo V8

550 HP

567 lbs.-ft.

Panamera Turbo S E-Hybrid 4.0 turbo V8

680 HP

626 lbs.-ft.

AMG C 63 Sedan 4.0 turbo V8

469 HP

479 lbs.-ft.

AMG C 63 S Sedan 4.0 turbo V8

503 HP

516 lbs.-ft.

As tested in Motor Trend the Panamera 4S is faster than the AMG C 63 S Sedan:

 

Panamera

AMG C 63

Zero to 30 MPH

1.3 sec

1.8 sec

Zero to 60 MPH

3.8 sec

4 sec

Fuel Economy and Range

On the EPA test cycle the Panamera Turbo S E-Hybrid running on electricity gets better fuel mileage than the AMG C 63 Sedan (48 city/51 hwy MPGe vs. 18 city/24 hwy).

On the EPA test cycle the Panamera gets better fuel mileage than the AMG C 63 Sedan:

 

 

Panamera

AMG C 63

 

RWD

Base/Auto

21 city/28 hwy

18 city/24 hwy

63/Auto

 

 

n/a

18 city/24 hwy

63 S/Auto

AWD

Base/Auto

21 city/27 hwy

n/a

 

 

4S/Auto

21 city/28 hwy

n/a

 

 

Turbo/Auto

18 city/25 hwy

n/a

 

The Panamera 4 E-Hybrid can drive on battery power alone for up to 31 miles. The AMG C 63 Sedan must run its internal combustion engine to move.

An engine control system that can shut down half of the engine’s cylinders helps improve the Panamera Turbo’s fuel efficiency. The AMG C 63 Sedan doesn’t offer a system that can shut down part of the engine.

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

The Panamera E Hybrid’s standard fuel tank has 3.7 gallons more fuel capacity than the AMG C 63 Sedan (21.1 vs. 17.4 gallons), for longer range between fill-ups. The Panamera’s standard fuel tank has 6.3 gallons more fuel capacity than the AMG C 63 Sedan (23.7 vs. 17.4 gallons).

Transmission

An eight-speed automatic (SMG) is standard on the Porsche Panamera, for better acceleration and lower engine speed on the highway. Only a seven-speed automatic is available for the AMG C 63 Sedan.

The Panamera offers a standard sequential manual gearbox (SMG). With no clutch pedal to worry about and a fully automatic mode, an SMG is much more efficient than a conventional automatic but just as easy to drive. The AMG C 63 Sedan doesn’t offer an SMG or a conventional manual transmission.

Brakes and Stopping

For better stopping power the Panamera Turbo’s brake rotors are larger than those on the AMG C 63 Sedan:

 

Panamera Turbo

Panamera opt.

AMG C 63

AMG C 63 S

Front Rotors

16.1 inches

16.5 inches

14.2 inches

15.8 inches

Rear Rotors

15 inches

15.4 inches

14.2 inches

14.2 inches

The Panamera stops shorter than the AMG C 63 Sedan:

 

Panamera

AMG C 63

 

70 to 0 MPH

153 feet

156 feet

Car and Driver

Tires and Wheels

For better traction, the Panamera has larger standard tires than the AMG C 63 Sedan (F:265/45R19 & R:295/40R19 vs. F:245/40R18 & R:265/35R18). The Panamera’s optional tires are larger than the largest tires available on the AMG C 63 Sedan (F:275/40R20 & R:315/35R20 vs. F:245/40R18 & R:265/35R18).

The Panamera’s optional 315/30R21 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 C 63 Sedan’s optional 35 series tires.

For better ride, handling and brake cooling the Panamera has standard 19-inch wheels. Smaller 18-inch wheels are standard on the AMG C 63 Sedan. The Panamera’s optional 21-inch wheels are larger than the 19-inch wheels optional on the AMG C 63 Sedan.

Suspension and Handling

The Panamera 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 C 63 Sedan doesn’t offer an active sway bar system.

The Panamera 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 C 63 Sedan.

The Panamera has a standard automatic front and rear load leveling suspension to keep ride height level with a heavy load or when towing. The Panamera’s height leveling suspension allows the driver to raise ride height for better off-road clearance and then lower it again for easier entering and exiting and better on-road handling. The AMG C 63 Sedan doesn’t offer a load leveling suspension.

For a smoother ride and more stable handling, the Panamera’s wheelbase is 4.3 inches longer than on the AMG C 63 Sedan (116.1 inches vs. 111.8 inches). The Panamera Executive’s wheelbase is 10.2 inches longer than on the AMG C 63 Sedan (122 inches vs. 111.8 inches).

For better handling and stability, the average track (width between the wheels) on the Panamera is 2.5 inches wider in the front and 3.8 inches wider in the rear than the track on the AMG C 63 Sedan.

The Panamera Turbo handles at 1.00 G’s, while the AMG C 63 S Sedan pulls only .97 G’s of cornering force in a Car and Driver skidpad test.

Chassis

The front grille of the Panamera 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 C 63 Sedan doesn’t offer active grille shutters.

The Panamera offers available computer-generated active noise cancellation to help remove annoying noise and vibration from the passenger compartment, especially at low frequencies. The AMG C 63 Sedan doesn’t offer active noise cancellation.

As tested by Car and Driver, the interior of the Panamera Turbo is quieter than the AMG C 63 S Sedan:

 

Panamera

AMG C 63 Sedan

At idle

44 dB

52 dB

Full-Throttle

75 dB

79 dB

70 MPH Cruising

64 dB

68 dB

Passenger Space

Because it has more passenger and cargo room, the EPA rates the Panamera 4dr Hatchback a Large car, while the AMG C 63 Sedan is rated a Compact.

The Panamera has 16 cubic feet more passenger volume than the AMG C 63 Sedan (108 vs. 92).

For enhanced passenger comfort on long trips the Panamera’s available rear seats recline. The AMG C 63 Sedan’s rear seats don’t recline.

Cargo Capacity

The Panamera has a much larger trunk with its rear seat up than the AMG C 63 Sedan (17.6 vs. 12.6 cubic feet).

The Panamera Sport Turismo has a much larger trunk with its rear seat up than the AMG C 63 Sedan (18.3 vs. 12.6 cubic feet).

Pressing a switch automatically lowers the Panamera’s rear seats, to make changing between passengers and cargo easier. The AMG C 63 Sedan doesn’t offer automatic folding seats.

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 Panamera’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 C 63 Sedan has neither an oil pressure gauge nor a temperature gauge.

To improve rear visibility by keeping the rear window clear, the Panamera offers an optional rear wiper. The AMG C 63 Sedan doesn’t offer a rear wiper.

Both the Panamera and the AMG C 63 Sedan have standard heated front seats. The Panamera also offers optional heated rear seats to keep those passengers extremely comfortable in the winter. Heated rear seats aren’t available in the AMG C 63 Sedan.

Optional air conditioned front and rear seats keep the Panamera’s passengers comfortable and take the sting out of hot leather in summer. The AMG C 63 Sedan doesn’t offer air-conditioned seats in the rear.

On extremely cold winter days, the Panamera’s optional heated steering wheel provides comfort, allowing the driver to steer safely and comfortably before the car heater warms up. The AMG C 63 Sedan doesn’t offer a heated steering wheel.

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

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