Last updated August 4, 2026
At the entry end, the 2.0 Turbo and 3.6 deliver the CT6’s core flagship-size cabin, leather-trimmed comfort, and main infotainment features. The Luxury family includes 2.0 Luxury, 2.0 Turbo Luxury, 3.0 Twin Turbo Luxury, and 3.6 Luxury; these models add more comfort, safety, and convenience equipment. The 2.0 Premium Luxury, 3.0 Twin Turbo Premium Luxury, and 3.6 Premium Luxury move closer to the full flagship experience with more advanced ride, parking, visibility, and audio features. The 3.0 Sport is the darker-styled, driver-focused twin-turbo AWD branch. The PLUG-IN is the electrified branch, pairing plug-in hybrid power with substantial cabin technology and rear-seat equipment. The Platinum models sit at the top, emphasizing richer materials, massaging seats, rear-passenger comfort, and powerful V6 or V8 engines depending on the year and version.
The Base Model trim level includes 2.0 Turbo and 3.6 and delivers the simplest CT6 formula: a large, sleek Cadillac with leather-trimmed comfort and the model’s core technology.
Best for: Shoppers who want the CT6’s space and style without the upper trims’ added comfort and rear-seat luxuries.
Highlights
The Luxury Features trim level includes 2.0 Luxury, 2.0 Turbo Luxury, 3.0 Twin Turbo Luxury, and 3.6 Luxury and is the comfort-focused step beyond the basic CT6.
Best for: Drivers who want a well-equipped CT6 with more safety and convenience features but do not need the upper trims’ specialized technology.
Highlights
Compared with Base Model, this level adds a panoramic roof and stronger active-safety and convenience equipment; power and driven wheels still vary by member trim.
15 in stock
The Premium Comfort trim level includes 2.0 Premium Luxury, 3.0 Twin Turbo Premium Luxury, and 3.6 Premium Luxury and is the CT6’s comfort-and-technology sweet spot.
Best for: Shoppers who want a fuller flagship experience with a more sophisticated ride and advanced parking, visibility, and audio features.
Highlights
It builds on Luxury Features with adaptive suspension, parking assistance that can brake, night vision, and higher-end audio; engine and seat equipment vary by member trim.
9 in stock
The Sport Styling trim level consists of 3.0 Sport, the driver-focused CT6 with twin-turbo V6 power and a darker look built around Premium Luxury equipment.
Best for: Drivers who prefer quicker power delivery and sportier design details over Platinum’s rear-seat indulgence.
Highlights
Rather than simply adding more comfort to Premium Comfort, 3.0 Sport shifts the emphasis to standard twin-turbo V6 power, AWD, darker exterior details, and carbon-fiber cabin trim.
1 in stock
The Plug-in Hybrid trim level consists of PLUG-IN, the electrified CT6 that combines smooth electric-assisted performance with substantial cabin and rear-seat technology.
Best for: Shoppers who want a large luxury sedan with plug-in hybrid driving and upper-trim comfort features.
Highlights
PLUG-IN is a separate branch rather than a direct upgrade from 3.0 Sport; it trades the Sport’s gas-only twin-turbo AWD setup for plug-in hybrid power and adds a strong rear-seat technology focus.
0 in stock
The Top Tier trim level includes 3.0 Platinum, 3.0 Twin Turbo Platinum, 3.6 Platinum, and 4.2 Platinum and is the richest non-V CT6, centered on power and executive-sedan comfort.
Best for: Shoppers who want the fullest CT6 luxury experience, especially massaging seats, rear-passenger amenities, premium audio, and strong gas-engine performance.
Highlights
Top Tier is not a direct evolution of the PLUG-IN branch; it returns to gas power and AWD while adding richer seating, adaptive suspension, premium audio, and a stronger rear-passenger focus.
4 in stock| Feature | Top Tier | Base Model | Sport Styling | Plug-in Hybrid | Luxury Features | Premium Comfort |
|---|---|---|---|---|---|---|
| Includes | 3.0 Platinum, 3.0 Twin Turbo Platinum, 3.6 Platinum, 4.2 Platinum4 in stock | 2.0 Turbo, 3.61 in stock | 3.0 Sport1 in stock | PLUG-IN0 in stock | 2.0 Luxury, 2.0 Turbo Luxury, 3.0 Twin Turbo Luxury, 3.6 Luxury15 in stock | 2.0 Premium Luxury, 3.0 Twin Turbo Premium Luxury, 3.6 Premium Luxury9 in stock |
| Powertrain identity | 3.6L V6, 3.0L twin-turbo V6, or 4.2L twin-turbo V8 | 2.0L turbo four or 3.6L V6 | 3.0L twin-turbo V6 | 2.0L turbo plug-in hybrid | 2.0L turbo four, 3.6L V6, or 3.0L twin-turbo V6 | 2.0L turbo four, 3.6L V6, or 3.0L twin-turbo V6 |
| Driven wheels | AWD | RWD with 2.0; AWD with 3.6 | AWD | RWD | RWD with 2.0; AWD with V6s | RWD with 2.0; AWD with V6s |
| Ride and chassis focus | Magnetic Ride Control; rear steering on some versions | Simplest CT6 setup | Driver-focused | Smooth electric-assisted response | Comfort-focused | Magnetic Ride Control |
| Front-seat treatment | 20-way heated, ventilated, and massaging | Leather; 14-way power | Premium Luxury-based comfort | Heated and ventilated | Heated 16-way seats on some versions | 16-way power; ventilation on some versions |
| Rear-seat focus | Entertainment; heating, ventilation, and massage on some versions | Core rear seating | No defining rear-seat upgrade | Heated outer seats and dual screens | Rear sunshades on some versions | Heated outer seats on some versions |
| Audio | Bose Panaray 34-speaker | Bose 8-speaker | Bose 10-speaker | Not a defining feature | Bose 8- or 10-speaker, by version | Upgraded Bose; 34-speaker Panaray on equipped versions |
| Driver-assistance and visibility highlights | Night vision and advanced braking; Super Cruise on 3.0 Platinum | Front and rear parking sensors | Parking assist with braking | Adaptive cruise control and enhanced night vision | Emergency braking and blind-spot monitoring | Parking assist with braking and night vision |
On the final-year CT6, Premium Luxury keeps the 3.6-liter V6 and all-wheel drive but adds an adaptive suspension, automatic parking with braking, night vision, and a 34-speaker Bose audio system. It is the bigger step for comfort and technology.
On the final-year CT6, Platinum replaces the 3.6-liter V6 with the 4.2-liter twin-turbo V8 and adds 20-way heated, ventilated, massaging front seats plus rear-seat entertainment. It is the power-and-luxury flagship of the regular CT6 range.
In the refreshed lineup, Sport is the more driver-focused choice. It uses a twin-turbo 3.0-liter V6, all-wheel drive, black mesh exterior trim, a rear spoiler, carbon-fiber cabin trim, and steering-wheel shift paddles. Premium Luxury focuses more on comfort and technology.
On 2016–2018 base models, the 2.0 Turbo uses a turbocharged four-cylinder engine and rear-wheel drive. The 3.6 uses a V6 and all-wheel drive while keeping the same basic equipment theme. The 3.6 is the better match for stronger, more effortless power and added traction.
On earlier CT6 models, both share the Luxury trim’s comfort, camera, parking, and sunshade upgrades. The 3.0 Twin Turbo Luxury adds a stronger twin-turbo V6, all-wheel drive, and steering-wheel shift paddles, while the 2.0 Turbo Luxury uses rear-wheel drive and a four-cylinder engine.
Both emphasize added cabin technology and convenience. Earlier 2.0 Premium Luxury models use a turbo four and rear-wheel drive, while 3.0 Twin Turbo Premium Luxury models add a stronger twin-turbo V6 and all-wheel drive. The 3.0 version also brings features such as a digital gauge display and heated rear seats.
The number identifies the engine, while the words after it identify the equipment level. For example, 3.6 Luxury and 3.0 Twin Turbo Luxury share a trim theme but use different engines. Cadillac also reorganized the names for the 2019 refresh, so compare badges within the same era.
Premium Luxury is the clearest middle-ground choice, especially in the final lineup. It keeps the 3.6-liter V6 and all-wheel drive while adding an adaptive suspension, night vision, automatic parking with braking, and the 34-speaker Bose system without moving to the V8 Platinum.
Platinum is the strongest rear-seat choice. Depending on the year, it includes features such as heated, ventilated, and massaging outboard rear seats, power seat adjustment, and dual-screen rear entertainment. Check the individual car because Platinum content changed across the CT6’s run.
For 2016–2018, the base 2.0 Turbo is the simplest CT6, with rear-wheel drive, leather seating, a 10.2-inch touchscreen, and an eight-speaker Bose system. In the later lineup, Luxury fills that role while adding V6 power, all-wheel drive, active safety features, and a panoramic roof.
No. The 2017–2018 CT6 Plug-In is a richly equipped electrified flagship, not a stripped-down model. It combines its plug-in hybrid system with navigation, rear entertainment, heated and ventilated front seats, heated rear seats, night vision, and advanced driver assistance.
Super Cruise first appeared on the 2018 CT6. It was standard on Platinum and offered on Premium Luxury that year. Later 3.0 Platinum models also included it. Because equipment varies by year and car, verify that the specific CT6 has the hands-free highway system.
The 4.2 Platinum has the Blackwing twin-turbo V8. It joined the refreshed lineup during 2019 and continued into the final U.S. model year, pairing the V8 with all-wheel drive, a 10-speed automatic, adaptive suspension, massaging front seats, and rear entertainment.
On pre-refresh CT6 models, both Platinum versions carry the same high-end comfort, suspension, rear-seat, audio, and driver-assistance theme. The main difference is the engine: the 3.6 has a regular V6, while the 3.0 Twin Turbo has stronger turbocharged power. Both use all-wheel drive.