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2017 Cadillac CT6 Review

The 2017 Cadillac CT6 ranks in the middle of the luxury large car class. It delivers dynamic handling, and its cabin is both elegant and spacious. However, its rivals have easier-to-use infotainment systems and more trunk space.

Pros & Cons

  • Expansive back seat
  • Three powerful engine choices
  • Engaging handling
  • Subpar trunk space
  • Wonky infotainment functions




Critics' Rating: 8.8
Performance: 8.8
Interior: 8.0
Total Cost of Ownership: 7.4
This model has never been fully tested for safety. Its overall score is being calculated without safety.
J.D. Power Ratings Logo

2017 Cadillac CT6 Overview

Is the 2017 Cadillac CT6 a Good Used Car?

The 2017 CT6 is a solid used luxury large car. Befitting its luxury badge, its cabin pampers occupants with tons of space, elegant materials, and a long list of features. The CT6 isn't all business – it can party too. This is one of the most engaging cars to drive in the class with pinpoint handling and a lineup of three brawny engines to choose from. However, this Cadillac’s rivals have more intuitive tech and earn higher marks for predicted reliability.

Why You Can Trust Us

We’ve researched 17 Cadillac CT6 reviews, as well as hard data points like reliability scores and cost of ownership estimates, to help you make the best car-buying decision possible.

U.S. News & World Report has been ranking cars since 2007, and our team has more than 75 years of automotive industry experience combined. While we’re passionate about cars, we’re even more committed to providing helpful consumer advice. To ensure our reviews remain impartial, we refuse expensive gifts and trips from car companies, and an outside team handles the advertising on our site.

How Much Is the 2017 Cadillac CT6?

Prices for the 2017 CT6 range from about $41,000 to around $66,000, with an average price of roughly $52,000. This data comes from about 150 listings for the 2017 CT6 on our site. Actual prices fluctuate depending on the vehicle's features, mileage, condition, and location.

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How Much Does the 2017 Cadillac CT6 Cost to Own?

The 2017 CT6 is more affordable than the competition when it comes to gas, insurance, repair, and maintenance costs. You can expect to pay around $28,100 over five years for these expenses. In comparison, a 2017 Cadillac XTS' five-year costs are about $3,000 higher, while the 2017 Audi A7's costs are more than $6,300 higher.

Is It Better to Buy a Used or New CT6?

For 2018, Cadillac's Super Cruise feature became available in the CT6. This technology controls the car's speed, braking, and steering, resulting in a semi-autonomous driving experience. It also monitors your eye movements to ensure that you're still paying attention to the road. The catch is that the system only works on the 130,000 miles of limited-access highways that Cadillac has mapped out across the United States. If you want to be on the cutting-edge of self-driving technology, the 2018 Cadillac CT6 (MSRP: $54,095) is one of your best options. It doesn't come cheap, though – you'll have to shell out around $70,000 for a Super Cruise-equipped CT6.

If you're OK with the philistine practice of driving a car yourself, consider shopping for a used CT6. It'll likely save you thousands of dollars over a new model, and you'll get an otherwise very similar car. 

Read about the new Cadillac CT6 »

A couple of decent new luxury large cars are within close range of the 2017 CT6's $52,000 average price. The well-equipped 2018 Lincoln Continental starts at just over $45,000, and it rivals the CT6 for back-seat space and comfort amenities. Cadillac's other large luxury sedan, the 2018 XTS, starts at around $46,400, with a mid-range trim that stacks up well against the 2017 CT6's interior quality and features.

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Which Model Year of the Cadillac CT6 Is Best?

The Cadillac CT6 was introduced as an all-new sedan for the 2016 model year. The main change for the 2017 model year was the debut of the plug-in hybrid version. You could likely save thousands of dollars and still get a nearly identical car by shopping for an older 2016 CT6 instead of a 2017 model.

Compare the 2016, 2017, and 2018 CT6 »

How Reliable Is the 2017 Cadillac CT6?

The 2017 Cadillac CT6 has a predicted reliability rating of three out of five from J.D. Power, which is considered average across the industry.

Read more about CT6 reliability »

2017 Cadillac CT6 Recalls

At the time of this writing, one open recall applies to the 2017 CT6. Excess structural adhesive on rear-seat LATCH connections can interfere with the installation of a child seat. Be sure that a Cadillac dealer has addressed this issue before buying a used 2017 CT6.

See more information on Cadillac CT6 safety recalls »

Which Used Cadillac CT6 Model Is Right for Me?

The 2017 Cadillac CT6 sedan is available in four trim levels: base, Luxury, Premium Luxury, and Platinum.

The base model is the best value, with its long list of standard features, including leather upholstery, three USB ports, a 10.2-inch touch screen, Android Auto, Apple CarPlay, and an in-car Wi-Fi hot spot. Some base models may also come equipped with a huge suite of convenience and active safety features like satellite navigation, pedestrian detection, and low-speed automatic emergency braking.

The standard CT6 also earns praise for its spry performance, thanks to its peppy engine and lighter weight than other CT6 trims. The higher trims add more features and have stronger V6 engines, but command higher prices.

See 2017 Cadillac CT6 trims and specs »

What Does Cadillac's Certified Pre-Owned Warranty Cover?

Cadillac offers a certified pre-owned program for vehicles four years old or less and with fewer than 50,000 miles. Eligibility is determined by the vehicle’s initial sale date. Qualifying vehicles see the original new-car limited warranty extended to six years or 100,000 miles. Cadillac CPO models must pass a 172-point inspection. Additional benefits like towing and roadside assistance may be available, so read Cadillac’s warranty page carefully.

Cadillac’s CPO program is OK, according to our analysis, but several luxury carmakers offer better programs. These include Lexus, Infiniti, Audi, and Acura.

See the best CPO programs »

How Safe Is the CT6?

The 2017 Cadillac CT6 did not undergo any crash testing by either the National Highway Traffic Safety Administration or the Insurance Institute for Highway Safety.

Like many of its classmates, the 2017 CT6 comes standard with a rearview camera and rear parking sensors. Available driver assistance features include adaptive headlights, a 360-degree camera, a rearview mirror camera, night-vision detection, a head-up display, adaptive cruise control, forward collision warning, pedestrian detection, automatic emergency braking, lane departure warning, lane keep assist, blind spot monitoring, rear cross traffic alert, and reverse automatic braking.

See CT6 safety scores »

2017 Cadillac CT6 Versus the Competition

Which Is Better: 2017 Cadillac CT6 or 2017 Audi A7?

Although 2017 Audi A7 and the CT6 have are pretty comparable cars, the CT6 is a better pick. It has much lower ownership costs than the A6, and for certain expenses, the difference is more than $6,000 over five years. The A7 has good performance for the class, thanks to its supercharged V6 engine, standard all-wheel-drive system, and dynamic cornering abilities. The performance-oriented S7 and RS7 models take the fun to another level. The CT6 has equally commendable performance, so shoppers looking for thrills should be satisfied with either model. Both luxury sedans offer a top-notch interior quality and more features than you can shake a stick at. The A7’s fastback design gives you more cargo space, but it cuts into rear-seat headroom.

Which Is Better: 2017 Cadillac CT6 or 2017 Cadillac XTS?

The 2017 XTS is another luxury large car that sports the Cadillac badge. It finishes close to the CT6 in our rankings, but it has different strengths. The XTS isn't as athletic as the CT6, and its base engine is weaker. However, it's available with a 410-horsepower twin-turbo V6 that matches the CT6's top powertrain. The XTS has great safety scores and a slightly better predicted reliability rating than the CT6. Cost is the main incentive of going with the XTS; its average price is under $30,000, which a great value for this segment. The XTS has an elegant interior, though the CT6's is a little nicer. The XTS also lacks some of the higher-end features available in a CT6, so you'll have to decide if it's worth paying more to get those.

Compare the CT6, A7, and XTS »

2017 CT6 Performance

How Does the 2017 Cadillac CT6 Drive?

The 2017 CT6 comes standard with a turbocharged 2.0-liter four-cylinder engine, and its 265 horsepower moves this Caddy with little effort. There are two alternatives to the base engine for those that crave more power: a 3.6-liter V6 with 335 horsepower and a 3.0-liter twin-turbocharged V6 with 404 horsepower. These engines have enough muscle to appease most drivers, with satisfying snarls and abundant power. These V6s also get you the benefit of standard all-wheel drive. CT6 models with the base engine only come with rear-wheel drive. An eight-speed automatic transmission is standard, and it enhances the driving experience by providing smooth shifts.

The CT6 is one of the sportiest large luxury sedans with its crisp steering, strong brakes, and sharp handling. Its lightweight constructions help it drive and handle like a smaller car. The CT6 also delivers a plush and pampering ride. The available Magnetic Ride Control quickly adjusts the suspension as road conditions changes. You can further improve performance by shopping for a CT6 with available active four-wheel steering. This system increases low-speed maneuverability and provides quicker, better-controlled handling at high speeds.

Does the 2017 Cadillac CT6 Get Good Gas Mileage?

With its standard engine, the 2017 CT6 gets great fuel economy for a luxury large car: 22 mpg in the city and 30 mpg on the highway. That mileage drops to 18 mpg city and 26 mpg highway with the 3.0-liter twin turbo engine and AWD.

A plug-in hybrid version of the CT6 debuted late in the 2017 model year, so availability may be limited. The CT6 Plug-in comes with a turbocharged four-cylinder engine, two electric motors, and a lithium-ion battery for a total output of 335 horsepower. It can go 31 miles on electric-only power and gets 62 combined MPGe. For more info, check out What Is MPGe?

Driving the CT6 plug-in would save you about $600 per year in fuel costs compared to a gas-only CT6 with either of the two lower-range engines. Because it requires premium gas, a CT6 with the twin-turbo V6 would cost you an extra $1,000 in fuel per year costs over the plug-in hybrid. This model can be charged in as little 4.5 hours with a 240-volt outlet.

Read more about CT6 performance »

2017 CT6 Interior

How Many People Does the 2017 CT6 Seat?

The 2017 Cadillac CT6 sedan seats five. The front seats are comfortable and spacious, and the second row is truly sprawl-worthy. Rear legroom is exceptional for the class, at 40.4 inches.

Leather upholstery and 14-way power-adjustable front seats are standard, but that's just the beginning of what makes riding in the CT6 a true indulgence. Cadillac's available noise-cancelling technology keeps the whisper-quiet cabin. Heated and cooled front seats are available, as are 16- or 20-way power-adjustments. Available niceties for the rear seats include heated and cooled seats, a massage function, and eight-way power adjustments.

How Many Car Seats Fit in the 2017 Cadillac CT6?

The CT6 has two sets of rear-seat lower anchors and three upper tether anchors. Though the lower anchors are located deep in the seat cushions, they're easy to access. The tether anchors are also easy to find and use.

2017 Cadillac CT6 Features

The CT6’s CUE infotainment system features a 10.2-inch touch-screen infotainment system with Apple CarPlay and Android Auto, an eight-speaker Bose sound system, Bluetooth, three USB ports, satellite radio, and HD Radio.

Though it’s a big step up from previous Cadillac offerings, the CUE system still doesn’t hit all the marks. Its menus feel overcomplicated, and its responsiveness can be wonky. However, it supports both Apple CarPlay and Android Auto, which blend your smartphone’s apps and functions with the touch screen. Both are much easier to use than the standard CUE interface. 

All CT6 models also come with dual-zone automatic climate control, proximity keyless entry, remote start, wireless device charging, a Wi-Fi hot spot, and a rearview camera. Available features include quad-zone climate control, a heated steering wheel, a 110-volt household-type outlet, navigation, a panoramic sunroof, a 10-speaker Bose stereo, a 34-speaker Bose Panaray sound system, a 12-inch digital instrument and gauge cluster, and a rear-seat Blu-ray player with two 10-inch screens.

See 2017 Cadillac CT6 specs »

Read more about CT6 interior »

2017 Cadillac CT6 Dimensions

Cadillac CT6 Cargo Space

The Cadillac CT6 has 15.3 cubic feet of trunk space, which is on the low end for the luxury large car class. It's enough room for a couple of golf bags or a few suitcases, but larger items may be a tight squeeze due to intrusive rear-wheel arches and the outboard rear seats, which don’t fold down. However, the small middle seat folds to create a slim pass-through for longer items. The CT6 Plug-in has significantly less space, offering just 10.6 cubic feet of trunk space.

2017 CT6 Length and Weight

The 2017 CT6 is 17 feet long. Its curb weight ranges from 3,657 pounds to 4,085 pounds, depending on trim level and powertrain. The CT6 plug-in weighs in at over 4,500 pounds.

Where Was the 2017 Cadillac CT6 Built?

General Motors built the 2017 Cadillac CT6 in Detroit.

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