Cadillac CT6
2017–2020 model years · Generation introduced 2016
Compare the years. Keep the details.
Compare model years ↓
- Available years
- 2017–2020
- Yearly records
- 4
- Reported market values
- $13,600–$36,450
The overview
Cadillac's new flagship fits above the CTS and below the BMW 7 Series and Mercedes-Benz S-Class. But it's priced to compete against the luxury midsized crowd. This large sedan possesses some athletic chops and has a steady, controlled ride and a very quiet interior. Most buyers will opt for the mid-level nonturbo V6, while the top trim carries a 404-hp twin-turbocharged V6. The eight-speed automatic is smooth and responsive. All-wheel drive comes standard with the V6s. The interior is posh and roomy, but cabin storage is a bit scant. Despite improvements, the updated CUE infotainment touch screen is still unintuitive.
Generation summary from Consumer Reports. Year-specific figures appear below; missing values mean unavailable, not zero.
Compare the years
Each row keeps its own source data.
| Model year | Market value | Reliability | Owner rating | EPA combined |
|---|---|---|---|---|
| 2020 ↗ Luxury sedan AWD 3.6-liter V6 (335 hp) (Regular Gasoline) Automatic 10-speed | $36,450 | Not rated | Not rated | 22 MPG |
| 2019 ↗ Luxury sedan AWD 3.6-liter V6 (335 hp) (Regular Gasoline) Automatic 10-speed | $21,725 | Not rated | Not rated | 22 MPG |
| 2018 ↗ Luxury sedan AWD 3.6-liter V6 (335 hp) (Regular Gasoline) Automatic 8-speed | $17,088 | Not rated | Not rated | 22 MPG |
| 2017 ↗ Luxury sedan AWD 3.6-liter V6 (335 hp) (Regular Gasoline) Automatic 8-speed | $13,600 | Not rated | Not rated | 22 MPG |
Values depend on trim and condition. Ratings are source-reported; road-test results may describe a tested configuration.
Year by year
2020 model
Luxury sedan AWD 3.6-liter V6 (335 hp) (Regular Gasoline) Automatic 10-speed · Conventional · Used
Find 2020 listings ↗ Specifications
Overview
- Powertrain
- Conventional
- Body style
- sedan
- Drive type
- AWD
- Transmission
- Automatic
- Category
- Luxury midsized cars
- Generation began
- 2016
Pricing
- Current retail median
- $36,450
- Retail value range
- $23,175 - $43,950
- Original MSRP range
- $58,995 - $96,495
- Trade-in range
- $20,710 - $41,320
Ratings
- Road test score
- 95/100
Fuel economy
- EPA city
- 18 MPG
- EPA highway
- 27 MPG
- EPA combined
- 22 MPG
- Tested city
- 14 MPG
- Tested highway
- 34 MPG
- Tested overall
- 22 MPG
- Annual fuel cost
- $2,190
- Cruising range
- 420 miles
Road tests
- 0-30 mph
- 2.5 sec
- 0-60 mph
- 6.5 sec
- 60-0 mph braking
- 125 ft
- Avoidance speed
- 52 mph
- Test status
- Test Completed
Dimensions
- Length
- 204 in
- Width
- 74 in
- Height
- 58 in
- Wheelbase
- 122 in
- Weight
- 4,040 lb
- Maximum load
- 910 lb
- Towing capacity
- 1,000 lb
Interior
- Seating
- 5 people
- Front head room
- 4.5 in
- Front leg room
- 44 in
- Rear head room
- 3.5 in
- Rear leg room
- 31 in
- Luggage
- 3+2+0
Environmental impact
- Air pollution score
- 5/10
- Greenhouse gas score
- 4/10
- SmartWay
- No
Vehicle ID: 15251 First published: July 22, 2020 Updated: September 11, 2026
Values may vary by trim, options, location, and market conditions.
2019 model
Luxury sedan AWD 3.6-liter V6 (335 hp) (Regular Gasoline) Automatic 10-speed · Conventional · Used
Find 2019 listings ↗ Specifications
Overview
- Powertrain
- Conventional
- Body style
- sedan
- Drive type
- AWD
- Transmission
- Automatic
- Category
- Luxury midsized cars
- Generation began
- 2016
Pricing
- Current retail median
- $21,725
- Retail value range
- $17,175 - $35,825
- Original MSRP range
- $50,495 - $95,795
- Trade-in range
- $13,880 - $33,445
Ratings
- Road test score
- 95/100
Fuel economy
- EPA city
- 18 MPG
- EPA highway
- 27 MPG
- EPA combined
- 22 MPG
- Tested city
- 14 MPG
- Tested highway
- 34 MPG
- Tested overall
- 22 MPG
- Annual fuel cost
- $2,190
- Cruising range
- 420 miles
Road tests
- 0-30 mph
- 2.5 sec
- 0-60 mph
- 6.5 sec
- 60-0 mph braking
- 125 ft
- Avoidance speed
- 52 mph
- Test status
- Test Completed
Dimensions
- Length
- 204 in
- Width
- 74 in
- Height
- 58 in
- Wheelbase
- 122 in
- Weight
- 4,040 lb
- Maximum load
- 910 lb
- Towing capacity
- 1,000 lb
Interior
- Seating
- 5 people
- Front head room
- 4.5 in
- Front leg room
- 44 in
- Rear head room
- 3.5 in
- Rear leg room
- 31 in
- Luggage
- 3+2+0
Environmental impact
- Air pollution score
- 5/10
- Greenhouse gas score
- 4/10
- SmartWay
- No
Vehicle ID: 12950 First published: July 22, 2020 Updated: September 11, 2026
Values may vary by trim, options, location, and market conditions.
2018 model
Luxury sedan AWD 3.6-liter V6 (335 hp) (Regular Gasoline) Automatic 8-speed · Conventional · Used
Find 2018 listings ↗ Specifications
Overview
- Powertrain
- Conventional
- Body style
- sedan
- Drive type
- AWD
- Transmission
- Automatic
- Category
- Luxury midsized cars
- Generation began
- 2016
Pricing
- Current retail median
- $17,088
- Retail value range
- $13,650 - $22,025
- Original MSRP range
- $54,095 - $88,295
- Trade-in range
- $10,100 - $19,345
Ratings
- Road test score
- 95/100
Fuel economy
- EPA city
- 18 MPG
- EPA highway
- 27 MPG
- EPA combined
- 22 MPG
- Tested city
- 14 MPG
- Tested highway
- 34 MPG
- Tested overall
- 22 MPG
- Annual fuel cost
- $2,190
- Cruising range
- 420 miles
Road tests
- 0-30 mph
- 2.5 sec
- 0-60 mph
- 6.5 sec
- 60-0 mph braking
- 125 ft
- Avoidance speed
- 52 mph
- Test status
- Test Completed
Dimensions
- Length
- 204 in
- Width
- 74 in
- Height
- 58 in
- Wheelbase
- 122 in
- Weight
- 4,040 lb
- Maximum load
- 910 lb
- Towing capacity
- 1,000 lb
Interior
- Seating
- 5 people
- Front head room
- 4.5 in
- Front leg room
- 44 in
- Rear head room
- 3.5 in
- Rear leg room
- 31 in
- Luggage
- 3+2+0
Environmental impact
- Air pollution score
- 5/10
- Greenhouse gas score
- 4/10
- SmartWay
- No
Vehicle ID: 10790 First published: July 22, 2020 Updated: September 11, 2026
Values may vary by trim, options, location, and market conditions.
2017 model
Luxury sedan AWD 3.6-liter V6 (335 hp) (Regular Gasoline) Automatic 8-speed · Conventional · Used
Find 2017 listings ↗ Specifications
Overview
- Powertrain
- Conventional
- Body style
- sedan
- Drive type
- AWD
- Transmission
- Automatic
- Category
- Luxury midsized cars
- Generation began
- 2016
Pricing
- Current retail median
- $13,600
- Retail value range
- $11,675 - $16,325
- Original MSRP range
- $53,795 - $87,795
- Trade-in range
- $8,210 - $12,880
Ratings
- Road test score
- 95/100
Fuel economy
- EPA city
- 18 MPG
- EPA highway
- 27 MPG
- EPA combined
- 22 MPG
- Tested city
- 14 MPG
- Tested highway
- 34 MPG
- Tested overall
- 22 MPG
- Annual fuel cost
- $2,190
- Cruising range
- 420 miles
Road tests
- 0-30 mph
- 2.5 sec
- 0-60 mph
- 6.5 sec
- 60-0 mph braking
- 125 ft
- Avoidance speed
- 52 mph
- Test status
- Test Completed
Dimensions
- Length
- 204 in
- Width
- 74 in
- Height
- 58 in
- Wheelbase
- 122 in
- Weight
- 4,040 lb
- Maximum load
- 910 lb
- Towing capacity
- 1,000 lb
Interior
- Seating
- 5 people
- Front head room
- 4.5 in
- Front leg room
- 44 in
- Rear head room
- 3.5 in
- Rear leg room
- 31 in
- Luggage
- 3+2+0
Environmental impact
- Air pollution score
- 6/10
- Greenhouse gas score
- 4/10
- SmartWay
- No
Vehicle ID: 10570 First published: July 22, 2020 Updated: September 11, 2026
Values may vary by trim, options, location, and market conditions.
Behind the data
Latest source update: September 11, 2026
Vehicle summaries, specifications, pricing and ratings come from Consumer Reports vehicle records. Auto Guide groups these records by model and reported generation start year.
Available years are listed explicitly. Gaps do not imply that a model was discontinued. Prices are source estimates, not live offers. No first-hand road test by Auto Guide is claimed.
