Compare the2022 Porsche PanameraVS 2020 Mercedes AMG S-Class

Both the Panamera and AMG S-Class have child safety locks to prevent children from opening the rear doors. The Panamera has 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 S-Class’ 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 Porsche Panamera 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 S-Class doesn’t offer a front passenger side knee airbag.

Both the Panamera and the AMG S-Class have standard driver and passenger frontal airbags, front and rear 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, lane departure warning systems, rearview cameras, available crash mitigating brakes, night vision systems, blind spot warning systems and around view monitors.

The Panamera’s corrosion warranty is 7 years longer than the AMG S-Class’ (12 vs. 5 years).

J.D. Power and Associates’ 2021 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 15th in initial quality. With 30 more problems per 100 vehicles, Mercedes is ranked 25th.

J.D. Power and Associates’ 2021 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 36 more problems per 100 vehicles, Mercedes is ranked 15th.

From surveys of all its subscribers, Consumer Reports’ January 2021 Auto Issue reports that Porsche vehicles are more reliable than Mercedes vehicles. Consumer Reports ranks Porsche 11 places higher in reliability than Mercedes.

The Panamera Turbo S E-Hybrid’s 4.0 turbo V8 hybrid produces 69 more horsepower (690 vs. 621) than the AMG S 65 Sedan’s optional 6.0 turbo V12.

On the EPA test cycle the Panamera Sedan running on electricity gets better mileage than the AMG S-Class:

On the EPA test cycle the Panamera Sedan running its gasoline engine gets better mileage than the AMG S-Class:

The Panamera 4 E-Hybrid can drive on battery power alone for up to 19 miles. The AMG S-Class must run its internal combustion engine to move.

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

The Panamera’s standard fuel tank has 2.6 gallons more fuel capacity than the AMG S-Class (23.7 vs. 21.1 gallons).

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 S-Class doesn’t offer an SMG or a conventional manual transmission.

For better traction, the Panamera has larger standard tires than the AMG S-Class (F:265/45R19 & R:295/40R19 vs. F:255/45R20 & R:285/40R20). The Panamera Turbo S/Turbo S E-Hybrid’s tires are larger than the largest tires available on the AMG S-Class (F:275/35R21 & R:325/30R21 vs. F:255/45R20 & R:285/40R20).

The Panamera’s optional 275/35R21 front and 315/30R21 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 S 65 Sedan’s 40 series front and 35 series rear tires.

For better ride, handling and brake cooling the Panamera offers optional 21-inch wheels. The AMG S-Class’ largest wheels are only 20-inches.

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 S-Class doesn’t offer an active sway bar system.

For better maneuverability, the Panamera’s turning circle is tighter than the AMG S-Class’:

The Porsche Panamera may be more efficient, handle and accelerate better because it weighs up to about 600 pounds less than the Mercedes AMG S-Class.

The Panamera is 9.7 inches shorter than the AMG S-Class, making the Panamera easier to handle, maneuver and park in tight spaces. The Panamera Executive is 3.8 inches shorter than the AMG S-Class.

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 S-Class 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 S-Class doesn’t offer active noise cancellation.

The Panamera has .5 inches more front legroom, .6 inches more rear headroom and 1.5 inches more rear legroom than the AMG S-Class.

The Panamera Sport Turismo has a larger trunk with its rear seat up than the AMG S-Class (18.3 vs. 18 cubic feet).

The Panamera’s available rear seats fold to accommodate long and bulky cargo. The AMG S-Class doesn’t offer folding rear seats.

J.D. Power and Associates surveys of service recipients show that Porsche service is better than Mercedes. J.D. Power ranks Porsche first in service department satisfaction. With a 32% lower rating, Mercedes is ranked 6th.

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 S-Class does not have an oil pressure gauge.

To improve rear visibility by keeping the rear window clear, the Panamera offers an optional rear wiper. The AMG S-Class doesn’t offer a rear wiper.