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The A8’s 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.
Both the A8 and Quattroporte have child safety locks to prevent children from opening the rear doors. The A8 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 Quattroporte’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 A8 has a standard front seat center airbag, which deploys between the driver and front passenger, protecting them from injuries caused by striking each other in serious side impacts. The Quattroporte doesn’t offer front seat center airbags.
The A8 has a standard Secondary Collision Brake Assist, which automatically applies the brakes in the event of a crash to help prevent secondary collisions and prevent further injuries. The Quattroporte doesn’t offer a post collision braking system: in the event of a collision that triggers the airbags, more collisions are possible without the protection of airbags that may have already deployed.
To provide maximum traction and stability on all roads, All-Wheel Drive is standard on the A8. But it costs extra on the Quattroporte.
A passive infrared night vision system optional on the A8 TFSI 60 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 Quattroporte doesn’t offer a night vision system.
The A8 has standard Audi Connect Care, which uses a global positioning satellite (GPS) receiver and a cellular system to 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 A8 and the Quattroporte have standard driver and passenger frontal airbags, front side-impact 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 blind spot warning systems, around view monitors and rear cross-path warning.
The Audi A8 weighs 540 to 804 pounds more than the Maserati Quattroporte. The NHTSA advises that heavier cars are much safer in collisions than their significantly lighter counterparts.
The A8’s corrosion warranty is 8 years and unlimited miles longer than the Quattroporte’s (12/unlimited vs. 4/50,000).
There are almost 3 times as many Audi dealers as there are Maserati dealers, which makes it much easier should you ever need service under the A8’s warranty.
The A8 60 TFSI’s standard 4.0 turbo V8 hybrid produces 29 more horsepower (453 vs. 424) and 81 lbs.-ft. more torque (487 vs. 406) than the Quattroporte S’ standard 3.0 turbo V6.
On the EPA test cycle the A8 55 TSFI gets better fuel mileage than the Quattroporte S Q4 (19 city/27 hwy vs. 16 city/23 hwy).
Regenerative brakes improve the A8’s fuel efficiency by converting inertia back into energy instead of wasting it. The Quattroporte doesn’t offer a regenerative braking system.
In its Green Vehicle Guide, the U.S. Environmental Protection Agency (EPA) rates the Audi A8 higher (3 out of 10) than the Maserati Quattroporte (1). This means the A8 produces up to 22.5 pounds less smog-producing pollutants than the Quattroporte every 15,000 miles.
For better stopping power the A8’s brake rotors are larger than those on the Quattroporte:
A8 55 TSFI
A8 60 TFSI
For better traction, the A8 has larger standard tires than the Quattroporte (255/45R19 vs. 245/45R19). The A8’s optional tires are larger than the largest tires available on the Quattroporte (265/40R20 vs. 245/40R20).
The front and rear suspension of the A8 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 A8 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 A8 has a standard automatic front and rear load leveling suspension to keep ride height level with a heavy load or when towing. The A8’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 Quattroporte doesn’t offer a load leveling suspension.
The A8 has .7 inches more rear headroom and 2.3 inches more rear shoulder room than the Quattroporte.
With its sedan body style, valet key and remote trunk release lockout, the A8 offers cargo security. The Quattroporte’s non-lockable folding seat and non-lockable remote release defeat cargo security.
Unlike the driver-only memory system in the Quattroporte, the A8 has standard driver and passenger memory, so that when drivers switch, the memory setting adjusts the driver’s seat, steering wheel position, outside mirror angle and climate settings and the front passenger seat also adjusts to the new passenger’s preset preferences.
The A8 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 A8 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.
To shield the driver and front passenger’s vision over a larger portion of the windshield and side windows, the A8 has standard extendable sun visors. The Quattroporte doesn’t offer extendable visors.
Consumer Reports® recommends the Audi A8, based on reliability, safety and performance.
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