2019 Mercedes AMG GT 4-Door vs. 2019 Cadillac CTS-V

Detailed Review, Specifications & Comparison

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Safety

Over 200 people are killed each year when backed over by motor vehicles. The AMG GT 4-Door has a standard Rear Cross Traffic Brake that use rear sensors to monitor and automatically apply the brakes to prevent a rear collision. The CTS-V doesn’t offer backup collision prevention brakes.

The AMG GT 4-Door has all-wheel drive to maximize traction under poor conditions, especially in ice and snow. The CTS-V doesn’t offer all-wheel drive.

The AMG GT 4-Door offers an optional Surround View System to allow the driver to see objects all around the vehicle on a screen. The CTS-V only offers a rear monitor and front and rear parking sensors that beep or flash a light. That doesn’t help with obstacles to the sides.

The AMG GT 4-Door’s 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 CTS-V doesn’t offer a driver alert monitor.

Both the AMG GT 4-Door and the CTS-V have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, collision warning systems, daytime running lights, blind spot warning systems, rearview cameras, rear cross-path warning and available lane departure warning systems.

The Mercedes AMG GT 4-Door weighs 498 to 617 pounds more than the Cadillac CTS-V. The NHTSA advises that heavier cars are much safer in collisions than their significantly lighter counterparts.

Reliability

For smoother operation, better efficiency and fewer moving parts, the engines in the AMG GT 4-Door have an overhead cam design, rather than the old pushrod design of the engine in the CTS-V.

J.D. Power and Associates’ 2019 Initial Quality Study of new car owners surveyed provide the statistics that show that Mercedes vehicles are better in initial quality than Cadillac vehicles. J.D. Power ranks Mercedes 12th in initial quality. With 6 more problems per 100 vehicles, Cadillac is ranked 17th.

J.D. Power and Associates’ 2019 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Mercedes vehicles are more reliable than Cadillac vehicles. J.D. Power ranks Mercedes 13th in reliability, above the industry average. With 32 more problems per 100 vehicles, Cadillac is ranked 23rd.

From surveys of all its subscribers, Consumer Reports’ December 2018 Auto Issue reports that Mercedes vehicles are more reliable than Cadillac vehicles. Consumer Reports ranks Mercedes 11 places higher in reliability than Cadillac.

Engine

The AMG GT 63 S’ standard 4.0 turbo V8 produces 34 lbs.-ft. more torque (664 vs. 630) than the CTS-V’s 6.2 supercharged V8.

Fuel Economy and Range

Regenerative brakes improve the AMG GT 4-Door 53’s fuel efficiency by converting inertia back into energy instead of wasting it. The CTS-V doesn’t offer a regenerative braking system.

In heavy traffic or at stoplights the AMG GT 4-Door’s engine automatically turns off when the vehicle is stopped, saving fuel and reducing pollution. The engine is automatically restarted when the driver gets ready to move again. (Start/Stop isn’t accounted in present EPA fuel mileage tests.) The CTS-V doesn’t offer an automatic engine start/stop system.

Environmental Friendliness

In its Green Vehicle Guide, the U.S. Environmental Protection Agency (EPA) rates the Mercedes AMG GT 4-Door higher (5 to 6 out of 10) than the Cadillac CTS-V (1). This means the AMG GT 4-Door produces up to 45.9 pounds less smog-producing pollutants than the CTS-V every 15,000 miles.

Transmission

A nine-speed automatic is available on the Mercedes AMG GT 4-Door, for better acceleration and lower engine speed on the highway. Only an eight-speed automatic is available for the CTS-V.

Brakes and Stopping

For better stopping power the AMG GT 4-Door’s optional front brake rotors are larger than those on the CTS-V:

AMG GT

CTS-V

Front Rotors

15.8 inches

15.4 inches

The AMG GT 4-Door 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 CTS-V doesn’t offer ceramic brake rotors.

Tires and Wheels

For better ride, handling and brake cooling the AMG GT 4-Door offers optional 21-inch wheels. The CTS-V’s largest wheels are only 19-inches.

Suspension and Handling

The AMG GT 53 has a standard automatic load leveling suspension to keep ride height level with a heavy load or when towing. The CTS-V doesn’t offer a load leveling suspension.

The AMG GT 4-Door’s drift compensation steering can automatically compensate for road conditions that would cause the vehicle to drift from side to side, helping the driver to keep the vehicle straight more easily. The CTS-V doesn’t offer drift compensation steering.

For a smoother ride and more stable handling, the AMG GT 4-Door’s wheelbase is 1.6 inches longer than on the CTS-V (116.2 inches vs. 114.6 inches).

For better handling and stability, the average track (width between the wheels) on the AMG GT 4-Door is 3.7 inches wider in the front and 4.2 inches wider in the rear than the track on the CTS-V.

Cargo Capacity

To make loading and unloading groceries and cargo easier when your hands are full, the AMG GT 4-Door’s power liftgate can be opened or closed just by kicking your foot under the back bumper, leaving your hands completely free. The CTS-V doesn’t offer a power or hands-free opening trunk.

Ergonomics

Unlike the driver-only memory system in the CTS-V, the AMG GT 4-Door 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.

If the windows are left open on the AMG GT 4-Door 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 CTS-V can only close the windows from inside the vehicle, with the ignition on.

Heated windshield washer nozzles are standard on the AMG GT 4-Door to prevent washer fluid and nozzles from freezing and help continue to keep the windshield clear in sub-freezing temperatures. The CTS-V doesn’t offer heated windshield washer nozzles.

To help drivers see further while navigating curves, the AMG GT 4-Door has standard adaptive headlights to illuminate around corners automatically by reading vehicle speed and steering wheel angle. The CTS-V doesn’t offer cornering lights.

To keep a safe, consistent following distance, the AMG GT 4-Door offers an optional Distronic, which alters the speed of the vehicle without driver intervention. This allows the driver to use cruise control more safely without constantly having to disengage it when approaching slower traffic. The CTS-V doesn’t offer an adaptive cruise control.

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

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