2020 Cadillac CT6-V vs. 2020 Mercedes AMG GT 4-Door

Detailed Review, Specifications & Comparison

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Safety

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An active infrared night vision system standard on the CT6-V 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 AMG GT 4-Door doesn’t offer a night vision system.

Both the CT6-V and the AMG GT 4-Door have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, height adjustable front shoulder belts, four-wheel antilock brakes, all wheel drive, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, blind spot warning systems, rearview cameras, rear cross-path warning and available around view monitors.

Warranty

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Cadillac’s powertrain warranty covers the CT6-V 2 years and 20,000 miles longer than Mercedes covers the AMG GT 4-Door. Any repair needed on the engine, transmission, axles, joints or driveshafts is fully covered for 6 years or 70,000 miles. Coverage on the AMG GT 4-Door ends after only 4 years or 50,000 miles.

The CT6-V’s corrosion warranty is 1 year longer than the AMG GT 4-Door’s (6 vs. 5 years).

There are over 2 times as many Cadillac dealers as there are Mercedes dealers, which makes it much easier should you ever need service under the CT6-V’s warranty.

Engine

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The CT6-V’s 4.2 turbo V8 produces 121 more horsepower (550 vs. 429) and 256 lbs.-ft. more torque (640 vs. 384) than the AMG GT 53’s standard 3.0 turbo 6-cylinder hybrid. The CT6-V’s 4.2 turbo V8 produces 50 lbs.-ft. more torque (640 vs. 590) than the AMG GT 63’s standard 4.0 turbo V8.

As tested in Car and Driver the Cadillac CT6-V is faster than the AMG GT 53 3.0 turbo 6-cylinder hybrid:

CT6-V

AMG GT 4-Door

Zero to 60 MPH

3.8 sec

4.1 sec

Zero to 100 MPH

9.1 sec

10.4 sec

5 to 60 MPH Rolling Start

4.7 sec

5 sec

Quarter Mile

12.2 sec

12.8 sec

Speed in 1/4 Mile

116 MPH

109 MPH

Fuel Economy and Range

© 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 2020/06/05

The CT6-V has a standard cap-less fueling system. The fuel filler is automatically opened when the fuel nozzle is inserted and automatically closed when it’s removed. This eliminates the need to unscrew and replace the cap and it reduces fuel evaporation, which causes pollution. The AMG GT 4-Door doesn’t offer a cap-less fueling system.

Transmission

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A 10-speed automatic is standard on the Cadillac CT6-V, for better acceleration and lower engine speed on the highway. Only a nine-speed automatic is available for the AMG GT 4-Door.

Tires and Wheels

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The CT6-V’s tires provide better handling because they have a lower 40 series profile (height to width ratio) that provides a stiffer sidewall than the AMG GT 4-Door’s standard 45 series front tires.

For better ride, handling and brake cooling the CT6-V has standard 20-inch wheels. Smaller 19-inch wheels are standard on the AMG GT 4-Door.

The CT6-V has a standard space-saver spare tire so you can replace a flat tire and drive to have the flat repaired or replaced. A spare tire isn’t available on the AMG GT 4-Door; it requires you to depend on roadside assistance and your vehicle will have to be towed.

Suspension and Handling

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For a smoother ride and more stable handling, the CT6-V’s wheelbase is 6.2 inches longer than on the AMG GT 4-Door (122.4 inches vs. 116.2 inches).

For better maneuverability, the CT6-V’s turning circle is 2.9 feet tighter than the AMG GT 4-Door’s (37.1 feet vs. 40 feet).

Chassis

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The CT6-V uses computer-generated active noise cancellation to help remove annoying noise and vibration from the passenger compartment, especially at low frequencies. The AMG GT 4-Door doesn’t offer active noise cancellation.

Passenger Space

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Because it has more passenger and cargo room, the EPA rates the CT6-V a Large car, while the AMG GT 4-Door is rated a Compact.

The CT6-V has standard seating for 5 passengers; the AMG GT 4-Door can only carry 4.

The CT6-V has 25.2 cubic feet more passenger volume than the AMG GT 4-Door (121.2 vs. 96).

For enhanced passenger comfort on long trips the CT6-V Platinum’s rear seats recline. The AMG GT 4-Door’s rear seats don’t recline.

Cargo Capacity

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With its sedan body style and remote trunk release lockout, the CT6-V offers cargo security. The AMG GT 4-Door’s hatchback body style and non-lockable remote release defeat cargo security.

Servicing Ease

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J.D. Power and Associates surveys of service recipients show that Cadillac service is better than Mercedes. J.D. Power ranks Cadillac third in service department satisfaction. With a 10% lower rating, Mercedes is ranked fifth.

Ergonomics

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The CT6-V’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 GT 4-Door does not have an oil pressure gauge.

A power rear sunshade and manual rear side window sunshades are standard in the CT6-V to help block heat and glare for the rear passengers. The AMG GT 4-Door doesn’t offer rear side window sunshades.

Recommendations

© 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 2020/06/05

The Cadillac CT6 outsold the Mercedes AMG GT by 89% during 2019.

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