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Despite being one of Cadillac’s most innovative luxury cars, the CT6 was discontinued after the 2020 model year. That means you won’t find a 2021 or 2022 CT6, but there are several older model years to choose from. Here are details about each.

2016 Cadillac CT6

The front seats of a 2016 Cadillac CT6
2016 Cadillac CT6 interior front seats | Cadillac

Even during the CT6’s first model year, Cadillac marketed it as a range-topping sedan. This full-size luxury car stands out with its sleek design and many engine choices. Its lower trims had a standard 265-hp turbo-four, while the Premium Luxury and Platinum packed a 335-hp V6. 

But the 2016 Cadillac CT6’s most potent power plant is a 404-hp turbo-V6, an option in the two highest trims. Each engine was mated to an eight-speed automatic transmission, and rear-wheel drive was standard.

The CT6’s gorgeous cabin accommodates five passengers, with plenty of legroom to keep taller adults comfortable. It features leather seats with driver memory settings, dual-zone climate control, and even Apple CarPlay integration. The base trim’s optional Driver Awareness package added many advanced safety systems, such as lane departure mitigation and forward collision warning.

In addition, the 2016 CT6 was among the first in its class to feature a rearview mirror camera. Using a rear-mounted camera, the driver could get a view from behind the vehicle through the rearview mirror. The car could also be optioned with a night-vision camera, a rear-seat infotainment system, and automatic parking. 

According to Edmunds, the CT6 featured a revised version of Cadillac User Entertainment. Test drivers found this interface has better response times than previous versions, and it’s operated on a large 10.2-inch touchscreen. Users can also manage its settings through a touchpad on the center console or voice recognition.

2017 Cadillac CT6

2017 Cadillac CT6 cockpit
2017 Cadillac CT6 cockpit | Cadillac

The 2017 CT6 marked the plug-in hybrid powertrain’s debut. This PHEV combines an electric motor with a turbo-four engine. It generates only a combined output of 265 hp but still delivers excellent performance. And the battery provides 31 miles of all-electric driving range.

2018 Cadillac CT6

2018 Cadillac CT6 Plug-In Hybrid
2018 Cadillac CT6 Plug-In Hybrid | Cadillac

The CT6 got a major update in 2018 with Super Cruise, General Motors’ semiautonomous driving system. For a $5,000 fee, users could operate the CT6 hands-free for long stretches of highway. For the 2018 model year, Cadillac also simplified the self-parking feature by adding automatic pedal modulation. 

The 2018 Cadillac CT6 is the first year to have Teen Driver, a feature popularized by the 2016 Chevy Malibu. Other minor updates include washing settings for the rearview camera, over-the-air updates for the CEU, and automatic heating for the steering wheel. 

2019 Cadillac CT6

A man behind the steering wheel of a 2019 Cadillac CT6
2019 Cadillac CT6 with Super Cruise engaged | Cadillac

Cadillac further improved the CT6’s technology interface in the 2019 model, showcasing a physical click-wheel controller instead of a touchpad. The sedan’s front end also received a minor redesign, and the base engine’s horsepower was reduced to 237 hp. Cadillac also dropped the PHEV, but the CT6 gained a 10-speed automatic transmission. 

More important, the Cadillac CT6-V debuted in 2019. This high-performance variant boasts a limited-slip differential, 20-inch wheels with grippy summer tires, and a 550-hp twin-turbo V8. Brembo brake calipers are also standard, as are all-wheel drive and an adaptive suspension.

2020 Cadillac CT6

A black 2020 Cadillac CT6-V high-performance sport sedan
2020 Cadillac CT6-V | Cadillac
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Some of the CT6’s optional features, including the night-vision camera and adaptive cruise control, were made standard for its last model year. Its engine lineup was reduced to just the 335-hp V6 and RWD was eliminated in favor of AWD.

Cadillac made some of the CT6’s optional features, including the night-vision camera and adaptive cruise control, standard for the car’s final year. The company also reduced the engine lineup to only the 335-hp V6 and eliminated RWD in favor of AWD.

After the 2020 CT6, Cadillac killed the car due to higher consumer demand for SUVs and crossovers. However, this sedan continues to thrive in China and has exciting updates planned for the 2024 model year. Americans will have to settle for a used CT6, but at least the CT6-V models are selling for well under their MSRPs.