“Needs more pickup from stop, build quality isn't comparable to other vehicles in its price range”
2020 Cadillac CT6: What's New, Specs & Features
Last updated August 4, 2026
The biggest change for the 2020 Cadillac CT6 is a simplified three-trim lineup with more equipment made standard. Cadillac dropped the turbo four-cylinder and twin-turbo V6, leaving a 3.6-liter V6 and a 4.2-liter twin-turbo V8.
About the 2020 Cadillac CT6
1st generation (2016-2020 U.S.), final U.S. model year, after the major 2019 styling and powertrain update.
Cadillac positioned the CT6 as its big, driver-focused luxury sedan rather than a soft, traditional boulevard car. The official materials emphasize strong performance, a smooth and responsive drive, lightweight construction, distinctive lighting, and a roomy cabin with modern technology. Against rivals, the CT6’s identity is a large American luxury sedan that mixes rear-seat space and flagship presence with sharper handling and more road feel than many full-size luxury competitors.
The 3.6 Luxury is the core full-size sedan, with AWD, a 10.2-inch touchscreen, active safety features, and a panoramic sunroof. Premium Luxury adds features such as an adaptive suspension, night vision, automatic parking help, and a 34-speaker Bose audio system, while Platinum pairs the twin-turbo V8 with massaging front seats and rear-seat entertainment.
What changed, by category
Powertrain
Cadillac dropped the turbocharged 2.0-liter four-cylinder and twin-turbo 3.0-liter V6. The remaining lineup uses either a 3.6-liter V6 or a 4.2-liter twin-turbo V8, both paired with a 10-speed automatic and AWD.
Safety
The 3.6 Luxury gained standard automatic high beams, blind-spot monitoring, and lane-departure warning. More active safety equipment was built into the trim instead of requiring an option package.
Tech
The 3.6 Luxury gained a standard navigation system, touchscreen, and panoramic power sunroof. Premium Luxury gained standard ventilated front seats, while other upper-trim features such as night vision, automatic parking help, and the 34-speaker Bose audio system were bundled into the trim.
2020 Cadillac CT6 specs and features by trim
| Feature | |||
|---|---|---|---|
| Engine | V6, 3.6 Liter | V8, Twin Turbo, 4.2 Liter | V6, 3.6 Liter |
| Transmission | Automatic, 10-Spd | Automatic, 10-Spd | Automatic, 10-Spd |
| Drivetrain | AWD | AWD | AWD |
| Fuel Type | Gas | Gas | Gas |
| MPG City | 18 mpg | 14 mpg | 18 mpg |
| MPG Highway | 27 mpg | 25 mpg | 27 mpg |
| Horsepower | 335 hp | 500 hp | 335 hp |
| Torque | 284 lb-ft | 574 lb-ft | 284 lb-ft |
| Max Towing | 1000 lb | 1000 lb | |
| Trunk/Cargo | 15.8 cu-ft | 15.8 cu-ft | 15.8 cu-ft |
| Rear Legroom | 40.4 in | 40.4 in | 40.4 in |
| Seats | 5 | 5 | 5 |
| Doors | 4 | 4 | 4 |
| 4-Wheel Disc Brakes | |||
| Adaptive Cruise Control | |||
| Alarm System | |||
| Automatic Emergency Braking | |||
| Automatic High Beams | |||
| Blindspot Sensors | |||
| Cruise Control | |||
| Lane Departure Warning | |||
| Night Vision System | |||
| Park Assist | |||
| Rear View Camera | |||
| 360 Camera | |||
| Alloy Wheels | |||
| LED Headlights | |||
| Panorama Moon Roof | |||
| Power Liftgate/Trunk Release | |||
| Rear Spoiler | |||
| Navigation System | |||
| Premium Audio | |||
| Smartphone Interface | |||
| 4-Zone Automatic Air Conditioning | |||
| Auto-Dimming Interior Mirror | |||
| Dual Power Rear Seats | |||
| Dual-Zone Climate Control | |||
| Folding Rear Seat | |||
| Heated Front Seats | |||
| Heated Rear Seats | |||
| Heated Steering Wheel | |||
| Interior Ambient Lighting | |||
| Leather Seats | |||
| Leather-Wrapped Steering Wheel | |||
| Massage Front Seat | |||
| Massage Rear Seat | |||
| Memory Front Seats | |||
| Proximity Keyless Entry | |||
| Push-Button Engine Start | |||
| Rear Window Shades | |||
| Remote Start | |||
| Ventilated Front Seats | |||
| Ventilated Rear Seats | |||
Frequently asked questions
What is the biggest change to the 2020 Cadillac CT6?
The biggest change is a simpler lineup with three trims, two engines, and more standard equipment. Cadillac removed several 2019 trims and reduced the need for large option packages.
Which engines does the 2020 Cadillac CT6 have?
The 2020 CT6 has either a 3.6-liter V6 or a 4.2-liter twin-turbo V8. Both are paired with a 10-speed automatic and AWD; the previous turbo four-cylinder and twin-turbo 3.0-liter V6 were dropped.
Did the 2020 Cadillac CT6 get more standard safety equipment?
Yes. The 2020 3.6 Luxury gained standard automatic high beams, blind-spot monitoring, and lane-departure warning, making key driver-assistance features standard on the entry CT6 trim.
How is the 2020 CT6 Premium Luxury different from the Luxury trim?
The 2020 Premium Luxury is the more fully equipped V6 model. It adds an adaptive suspension, night vision, automatic parking help with braking, ventilated front seats, and a 34-speaker Bose audio system.
Is 2020 the final U.S. model year for the Cadillac CT6?
Yes. The 2020 CT6 is the final U.S. model year of the first-generation sedan, following the major styling and powertrain update introduced for 2019.
2020 Cadillac CT6 Reviews
What owners are saying about the 2020 Cadillac CT6.
4.4
2020 Cadillac CT6
(118 reviews)
“Wanted heated steering wheel, only thing I asked for, didn't get it....I thought it was included....what a disappointment!!”
“It has excellent styling. It's comfortable. It's quiet. It has excellent performance.”