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The CT6’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.
In the past twenty years hundreds of infants and young children have died after being left in vehicles, usually by accident. When turning the vehicle off, drivers of the CT6 are reminded to check the back seat if they opened the rear door before starting out. The Quattroporte doesn’t offer a back seat reminder.
Over 200 people are killed each year when backed over by motor vehicles. The CT6 Premium Luxury/Platinum has standard Reverse Automatic Braking that uses rear sensors to monitor and automatically apply the brakes to prevent a rear collision. The Quattroporte doesn’t offer backup collision prevention brakes.
To provide maximum traction and stability on all roads, All-Wheel Drive is standard on the CT6. But it costs extra on the Quattroporte.
An active infrared night vision system standard on the CT6 Premium Luxury/Platinum 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 CT6 has standard OnStar®, which uses a global positioning satellite (GPS) receiver and a cellular system to get turn-by-turn driving directions, 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 CT6 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, crash mitigating brakes, daytime running lights, lane departure warning systems, blind spot warning systems, rearview cameras, rear cross-path warning and available around view monitors.
Cadillac’s powertrain warranty covers the CT6 2 years and 20,000 miles longer than Maserati covers the Quattroporte. Any repair needed on the engine, transmission, axles, joints or driveshafts is fully covered for 6 years or 70,000 miles. Coverage on the Quattroporte ends after only 4 years or 50,000 miles.
The CT6’s corrosion warranty is 2 years and unlimited miles longer than the Quattroporte’s (6/unlimited vs. 4/50,000).
There are over 7 times as many Cadillac dealers as there are Maserati dealers, which makes it much easier should you ever need service under the CT6’s warranty.
The CT6 Platinum’s standard 4.2 turbo V8 produces 50 lbs.-ft. more torque (574 vs. 524) than the Quattroporte GTS’ standard 3.8 turbo V8.
On the EPA test cycle the CT6 V6 gets better fuel mileage than the Quattroporte S Q4 (18 city/27 hwy vs. 16 city/23 hwy).
An engine control system that can shut down some of the engine’s cylinders helps improve the CT6’s fuel efficiency. The Quattroporte doesn’t offer a system that can shut down part of the engine.
In its Green Vehicle Guide, the U.S. Environmental Protection Agency (EPA) rates the Cadillac CT6 higher (3 to 5 out of 10) than the Maserati Quattroporte (1). This means the CT6 produces up to 39 pounds less smog-producing pollutants than the Quattroporte every 15,000 miles.
A 10-speed automatic is standard on the Cadillac CT6, for better acceleration and lower engine speed on the highway. Only an eight-speed automatic is available for the Quattroporte.
The CT6 has a standard easy tire fill system. When inflating the tires, the vehicle’s integrated tire pressure sensors keep track of the pressure as the tires fill and tell the driver when the tires are inflated to the proper pressure. The Quattroporte doesn’t offer vehicle monitored tire inflation.
The CT6 uses computer-generated active noise cancellation to help remove annoying noise and vibration from the passenger compartment, especially at low frequencies. The Quattroporte doesn’t offer active noise cancellation.
The CT6 has 7.2 cubic feet more passenger volume than the Quattroporte (121.2 vs. 114).
The CT6 has 1.6 inches more front headroom, .2 inches more rear headroom and .9 inches more rear shoulder room than the Quattroporte.
With its sedan body style and remote trunk release lockout, the CT6 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 CT6 Premium Luxury/Platinum has a passenger memory, so that when drivers switch, the memory setting adjusts the driver’s seat, steering wheel position, suspension setting, outside mirror angle and radio stations and the front passenger seat also adjusts to the new passenger’s preset preferences.
The CT6 Premium Luxury/Platinum 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.
To shield the driver and front passenger’s vision over a larger portion of the windshield and side windows, the CT6 has standard extendable sun visors. The Quattroporte doesn’t offer extendable visors.
The CT6 Platinum has standard massaging front and rear seats in order to maximize comfort and eliminate fatigue on long trips. Massaging seats aren’t available in the Quattroporte.
To quickly and conveniently keep personal devices charged without cables tangling and wearing out, the Cadillac CT6 has a standard wireless phone charging system (Qi) in the center console. The Quattroporte doesn’t offer wireless personal charging.
The CT6 Premium Luxury/Platinum’s Automatic Park Assist can parallel park or back into a parking spot by itself, starting and stopping automatically, with the driver only responsible for switching from reverse to drive. The Quattroporte doesn’t offer an automated parking system.
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