2019 Mercedes-Benz CLS VS 2018 Cadillac CT6

There’s a class of large luxury sedans that caters to the demands of a loyal fan base and the 2019 models of both Mercedes-Benz and Cadillac deliver. We’re honing our razor sharp focus on the 2019 Mercedes-Benz CLS vs 2018 Cadillac CT6, to task ourselves with the impossible chore of picking a winner between the two. Sure it’s a tough job but someone’s got to do it and we’re up for the challenge. Enjoy this comparison of the 2019 Mercedes-Benz CLS vs 2018 Cadillac CT6. We’ll get started by approaching the performance of the Mercedes-Benz and the Cadillac side-by-side.

2019 Mercedes-Benz CLS vs. 2018 Cadillac CT6: Performance

The redesigned 2019 Mercedes-Benz CLS rides smoothly and makes a great cruising vehicle. It handles well and gets ample power from either of its turbocharged six-cylinder engines. The CLS 450 features a turbocharged 3.0-liter six-cylinder engine that puts out 362 horsepower. It also has an EQ Boost mild hybrid function that activates automatically and can add 21 horsepower (and 184 pound-feet of torque) over short periods. This engine delivers power in a smooth, linear fashion and never feels weak. The EQ Boost is a pleasant addition, making the engine feel livelier. According to EPA estimates, the CLS gets 24 mpg in the city and 31 mpg on the highway with its base engine. Those are some of the best ratings in the class.

The 2018 Cadillac CT6 has four potent powertrains to choose from, and it comes standard with rear-wheel drive. All-wheel drive is available. As for road manners, the CT6 isn’t a sports car, but it does have pretty good athleticism for a large sedan, and the ride is comfortable. The CT6 comes standard with a turbocharged, 2.0-liter four-cylinder engine that puts out 265 horsepower. It has plenty of power for all driving situations, and it gets better fuel economy than many other luxury large cars’ base engines, earning 22 mpg in the city and 30 mpg on the highway (according to Cadillac’s estimates).

2019 Mercedes-Benz CLS vs. 2018 Cadillac CT6: Feature Comparison

The 2019 Mercedes-Benz CLS looks modern and stylish inside following its redesign, with top-notch materials quality. Both rows of seats are comfortable. There’s plenty of available technology, and a user-friendly infotainment system comes standard. The CLS comes standard with the COMMAND® infotainment system that includes a 12.3-inch display screen and a touchpad controller that gives haptic and acoustic feedback. Available features include Thermotronic (GPS-linked) automatic climate control, Mercedes-Benz In-Car-Office, Mercedes-Benz Link smartphone connectivity, wireless device charging, a Burmester audio system, and Car-to-X communication. Beyond the infotainment system, the CLS offers a plethora of useful and cutting-edge technology. At the top of the list is Car-to-X communication, which allows all cars equipped with this technology to communicate with each other about hazardous on-road situations, allowing you to potentially avoid accidents and other dangers.

The 2018 Cadillac CT6 features a richly styled interior and high-end materials, though it still lags behind some rivals in this area. The seats are spacious and supportive, but infotainment tech is a mixed bag in terms of usability and connectivity. The CT6’s trunk is smaller than most other large sedans’. The Cadillac CT6 comes standard with Cadillac’s CUE infotainment system, a 10.2-inch touch screen, an eight-speaker Bose audio system, three USB ports, Bluetooth®*, satellite radio, wireless smartphone charging, a rearview camera, dual-zone automatic climate control, remote start, a proximity key, and push-button start. There are some features that come standard in the CT6 that would cost you extra in many rivals, such as Apple CarPlay, Android Auto, and a Wi-Fi hot spot. While that connectivity is nice, the CUE infotainment system does present some problems. The touch screen will occasionally miss inputs, and some users will think the menu layout is confusing.
*Bluetooth® is a registered mark Bluetooth® SIG, Inc.

2019 Mercedes-Benz CLS vs. 2018 Cadillac CT6: Overall Comparison

Mercedes-Benz redesigned the CLS for the 2019 model year, and it sees plenty of changes. The 2019 model features a revamped trim lineup and replaces the prior generation’s twin-turbo V8s with six-cylinder engines. The new engines are more efficient thanks to the new mild hybrid technology. Inside, the CLS boasts an attractive, posh interior and offers a lengthy list of features, including many driver assistance options. The seats are comfortable and supportive as well. The CLS lives up to its luxury billing by providing a cushioned ride and a chic, well-built interior. There are lots of reasons to like this Mercedes-Benz, and that’s why it finishes in the top half of luxury large car rankings.

The CT6 has a powerful engine lineup, but the Mercedes-Benz CLS’ engines are even more powerful, starting with a standard turbocharged V6 engine and two optional turbocharged V8s. Despite its stronger powertrains, the CLS gets comparable fuel economy to the CT6. The Mercedes-Benz also balances a smooth, luxurious ride with agile handling. The CLS’ interior is nicer than the CT6’s, with elegant and high-quality materials throughout. These two rivals are pretty close in terms of their overall appeal. As you’ve read, there are quite a few reasons to justify spending the extra money to get the CLS over the CT6.

Still Undecided?

Come drop by our Mercedes-Benz dealership in Fairfield, CA to check out our new cars, you’ll see just what makes them so appealing. Speak with our Mercedes-Benz sales associates about our latest Mercedes-Benz financing options, and take a test drive today!

Make an Inquiry

If you have any question or concerns, fill out the for below and we’ll get back to you soon, or call (707) 430-0101.
We are more than happy to help!

  • This field is for validation purposes and should be left unchanged.