2019 Mercedes S-Class vs. 2019 Maserati Quattroporte

Detailed Review, Specifications & Comparison

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Safety

The 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.

The rear seatbelts optional on the S-Class inflate when a collision is detected, helping to spread crash forces over a much larger area of the body and limiting head and neck movement. This can help prevent spinal and internal injuries. The Quattroporte doesn’t offer inflatable seatbelts.

An active infrared night vision system optional on the 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 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 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 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 all wheel drive, around view monitors and rear cross-path warning.

Warranty

The 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 S-Class’ warranty.

Reliability

J.D. Power and Associates rated the S-Class third among large premium cars in their 2018 Initial Quality Study. The Quattroporte isn’t in the top three in its category.

Engine

The S-Class has more powerful engines than the Quattroporte:

 

Horsepower

Torque

S 560 4.0 turbo V8

463 HP

516 lbs.-ft.

AMG S 63 4.0 turbo V8

603 HP

664 lbs.-ft.

AMG S 65/Maybach S 650 6.0 turbo V12

621 HP

738 lbs.-ft.

Quattroporte S 3.0 turbo V6

424 HP

406 lbs.-ft.

Quattroporte GTS 3.8 turbo V8

523 HP

524 lbs.-ft.

Fuel Economy and Range

On the EPA test cycle the S-Class gets better fuel mileage than the Quattroporte:

 

 

S-Class

Quattroporte

 

RWD

450/Auto

19 city/28 hwy

16 city/23 hwy

S/Auto

 

560/Auto

17 city/27 hwy

15 city/22 hwy

GTS/Auto

AWD

450/Auto

18 city/28 hwy

16 city/23 hwy

S/Auto

 

560/Auto

17 city/27 hwy

n/a

 

 

AMG 63/Auto

17 city/26 hwy

n/a

 

 

Maybach 560/Auto

16 city/25 hwy

n/a

 

An engine control system that can shut down half of the engine’s cylinders helps improve the S-Class 560/63’s fuel efficiency. The Quattroporte doesn’t offer a system that can shut down part of the engine.

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

The S-Class V12’s standard fuel tank has 3.5 gallons more fuel capacity than the Quattroporte (24.6 vs. 21.1 gallons).

Environmental Friendliness

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

Transmission

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

The S-Class 63/65’s 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

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

 

S 450/560

S 63/65

Quattroporte S

Quattroporte GTS

Front Rotors

14.6 inches

16.5 inches

14.2 inches

15 inches

Rear Rotors

14.2 inches

14.2 inches

13.8 inches

13.8 inches

The S-Class S 63/65 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

For better traction, the S 63’s front tires are larger than the largest tires available on the Quattroporte (F:255/40R20 & R:285/35R20 vs. F:245/40R20 & R:285/35R20).

Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires available on the 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

The front and rear suspension of the 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 S-Class 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 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 S AMG S 65’s turning circle is .6 feet tighter than the Quattroporte’s (38.1 feet vs. 38.7 feet).

Passenger Space

The Maybach S-Class has 6 cubic feet more passenger volume than the Quattroporte (120 vs. 114).

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

Cargo Capacity

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

Ergonomics

Unlike the driver-only memory system in the Quattroporte, the 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 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 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 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.

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

The S-Class’ optional Active Parking Assist can parallel park or back into a parking spot by itself, with the driver only controlling speed with the brake pedal. The Quattroporte doesn’t offer an automated parking system.

Model Availability

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

Recommendations

Consumer Reports® recommends the Mercedes S-Class, based on reliability, safety and performance.

The Mercedes S-Class outsold the Maserati Quattroporte by over 9 to one during 2017.

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

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