2020 Mercedes AMG S-Class vs. 2019 Maserati Quattroporte

Detailed Review, Specifications & Comparison

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Safety

© 1999 - 2020 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2020/02/18

The AMG S-Class’ pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The Quattroporte doesn’t offer pre-crash pretensioners.

An active infrared night vision system optional on the AMG S-Class helps the driver to more easily detect people, animals or other objects in front of the vehicle at night. Using an infrared camera and near-infrared lights to detect heat, the system then displays the image on a monitor in the dashboard. The Quattroporte doesn’t offer a night vision system.

The AMG S-Class’ driver alert monitor detects an inattentive driver then sounds a warning and suggests a break. According to the NHTSA, drivers who fall asleep cause about 100,000 crashes and 1500 deaths a year. The Quattroporte doesn’t offer a driver alert monitor.

The AMG S-Class has standard Mercedes-Benz Emergency Call, which uses a global positioning satellite (GPS) receiver and a cellular system to remotely unlock your doors if you lock your keys in, help track down your vehicle if it’s stolen or send emergency personnel to the scene if any airbags deploy. The Quattroporte doesn’t offer a GPS response system, only a navigation computer with no live response for emergencies, so if you’re involved in an accident and you’re incapacitated help may not come as quickly.

Both the AMG S-Class and the Quattroporte have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, front and rear seatbelt pretensioners, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights, blind spot warning systems, rearview cameras, available around view monitors and rear cross-path warning.

The Mercedes AMG S-Class weighs 573 to 868 pounds more than the Maserati Quattroporte. The NHTSA advises that heavier cars are much safer in collisions than their significantly lighter counterparts.

Warranty

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The AMG S-Class’ corrosion warranty is 1 year and unlimited miles longer than the Quattroporte’s (5/unlimited vs. 4/50,000).

There are over 3 times as many Mercedes dealers as there are Maserati dealers, which makes it much easier should you ever need service under the AMG S-Class’ warranty.

Engine

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The AMG S 63 Sedan’s standard 4.0 turbo V8 produces 179 more horsepower (603 vs. 424) and 258 lbs.-ft. more torque (664 vs. 406) than the Quattroporte S’ standard 3.0 turbo V6. The AMG S 63 Sedan’s 4.0 turbo V8 produces 80 more horsepower (603 vs. 523) and 140 lbs.-ft. more torque (664 vs. 524) than the Quattroporte GTS’ standard 3.8 turbo V8. The AMG S 65 Sedan’s standard 6.0 turbo V12 produces 98 more horsepower (621 vs. 523) and 214 lbs.-ft. more torque (738 vs. 524) than the Quattroporte GTS’ standard 3.8 turbo V8.

Fuel Economy and Range

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On the EPA test cycle the AMG S 63 Sedan 4MATIC gets better fuel mileage than the Quattroporte GTS (17 city/26 hwy vs. 15 city/22 hwy).

An engine control system that can shut down some of the engine’s cylinders helps improve the AMG S 63’s fuel efficiency. The Quattroporte doesn’t offer a system that can shut down part of the engine.

Environmental Friendliness

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In its Green Vehicle Guide, the U.S. Environmental Protection Agency (EPA) rates the Mercedes AMG S-Class higher (3 to 5 out of 10) than the Maserati Quattroporte (1). This means the AMG S-Class produces up to 39 pounds less smog-producing pollutants than the Quattroporte every 15,000 miles.

Transmission

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A nine-speed automatic is standard on the Mercedes AMG S-Class, for better acceleration and lower engine speed on the highway. Only an eight-speed automatic is available for the Quattroporte.

The AMG S-Class’ 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 Quattroporte doesn’t offer launch control.

Brakes and Stopping

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For better stopping power the AMG S-Class’ brake rotors are larger than those on the Quattroporte:

AMG S-Class

AMG S-Class opt.

Quattroporte S

Quattroporte GTS

Front Rotors

15.4 inches

16.5 inches

14.2 inches

15 inches

Rear Rotors

14.2 inches

14.2 inches

13.8 inches

13.6 inches

The AMG S-Class 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 Quattroporte doesn’t offer ceramic brake rotors.

Tires and Wheels

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For better traction, the AMG S-Class has larger tires than the Quattroporte (F:255/45R20 & R:285/40R20 vs. F:245/45R19 & R:275/40R19). The AMG S-Class’ front tires are larger than the largest tires available on the Quattroporte (F:255/45R20 & R:285/40R20 vs. F:245/40R20 & R:285/35R20).

For better ride, handling and brake cooling the AMG S-Class has standard 20-inch wheels. Smaller 19-inch wheels are standard on the Quattroporte.

Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires available on the AMG S-Class can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The Quattroporte doesn’t offer run-flat tires.

Suspension and Handling

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The front and rear suspension of the AMG S-Class uses air springs for a smoother, controlled ride than the Quattroporte, which uses coil springs. Air springs maintain proper ride height and ride more smoothly.

The AMG S 65 Sedan offers an available adjustable active suspension system, which counteracts cornering forces actively, limiting body roll and improving handling and stability. Maserati doesn’t offer an active suspension on the Quattroporte.

The AMG S-Class has a standard automatic front and rear load leveling suspension to keep ride height level with a heavy load or when towing. The Quattroporte doesn’t offer a load leveling suspension.

For better maneuverability, the AMG S 65 Sedan’s turning circle is .6 feet tighter than the Quattroporte’s (38.1 feet vs. 38.7 feet).

Passenger Space

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The AMG S-Class has 1.1 inches more front headroom and 3.8 inches more rear shoulder room than the Quattroporte.

Cargo Capacity

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With its sedan body style, valet key and remote trunk release lockout, the AMG S-Class offers cargo security. The Quattroporte’s non-lockable folding seat and non-lockable remote release defeat cargo security.

Ergonomics

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Unlike the driver-only memory system in the Quattroporte, the AMG S-Class has standard driver and passenger memory, so that when drivers switch, the memory setting adjusts the driver’s seat, steering wheel position and outside mirror angle and the front passenger seat also adjusts to the new passenger’s preset preferences.

The AMG S-Class 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 Quattroporte doesn’t offer a heads-up display.

If the windows are left open on the AMG S-Class the driver can close them all at the outside door handle or from a distance using the remote. On a hot day the driver can lower the windows from a distance using the keyless remote. The driver of the Quattroporte can only operate the windows from inside the vehicle, with the ignition on.

Heated windshield washer fluid is standard on the AMG S-Class to defrost the washer nozzles and quickly clear ice and frost from the windshield without scraping. The Quattroporte doesn’t offer heated windshield washer fluid. Its standard heated washer nozzles will defrost the washer fluid but not the windshield.

The AMG S-Class has standard massaging front and optional massaging rear seats. Massaging seats aren’t available in the Quattroporte.

The AMG S-Class’ Active Parking Assist can parallel park or back into a parking spot by itself, starting, stopping and changing direction automatically. The Quattroporte doesn’t offer an automated parking system.

Model Availability

© 1999 - 2020 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2020/02/18

The Mercedes AMG S-Class comes in coupe, convertible and sedan bodystyles; the Maserati Quattroporte isn’t available as a coupe or convertible.

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