Cadillac CT6 Plug-In MPG by year — every rating on record
The Cadillac CT6 Plug-In has a combined EPA fuel economy rating for 2 model years, from 2017 to 2018. Across those years its best rated version returned 26 mpg (2017) and its thirstiest returned 25 mpg (2018). The EPA record holds 2 configurations for this nameplate, most recently a Midsize Cars.
Year-by-year EPA ratings
| Model year | Configurations | Best combined | Worst combined | Class rank that year | Drivetrains | Fuel | EPA class |
|---|---|---|---|---|---|---|---|
| 2017 | 1 | 26 mpg | 26 mpg | #64 of 110 (42th pct) | Rear-Wheel Drive | Premium and Electricity | Midsize Cars |
| 2018 | 1 | 25 mpg | 25 mpg | #82 of 125 (35th pct) | Rear-Wheel Drive | Premium and Electricity | Midsize Cars |
Where it has stood in its class
Ranked against every other nameplate the EPA filed under the same class that year. The Cadillac CT6 Plug-In placed highest in 2017 at #64 of 110, and lowest in 2018 at #82 of 125. It spent 0 of its 2 ranked years in the top half of its class.
Every configuration on record
All 2 configurations EPA lists for this nameplate, newest first.
| Year | Configuration | Engine detail | City | Highway | Combined | Gallons/yr | Barrels/yr | EPA fuel cost/yr | Range | CO2 g/mi | GHG |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2018 | 2.0L 4-cyl Rear-Wheel Drive Automatic (variable gear ratios) Premium and Electricity | SIDI; PHEV, turbocharged, Plug-in Hybrid, start-stop | 23 | 29 | 25 | 460.0 | 4.9 | $3,100 | 430 mi | 144 | 10/10 |
| 2017 | 2.0L 4-cyl Rear-Wheel Drive Automatic (variable gear ratios) Premium and Electricity | SIDI; PHEV, turbocharged, Plug-in Hybrid, start-stop | 23 | 29 | 26 | 442.3 | 4.9 | $3,000 | 440 mi | 144 | 10/10 |
How the rating has moved between model years
Comparing the best-rated configuration of each year. 0 of 1 year-over-year steps improved the top rating.
| Change | Best combined | Delta | Gallons a year at the newer rating |
|---|---|---|---|
| 2017 → 2018 | 26 → 25 mpg | -1 mpg | 460 gal |
What CT6 Plug-In fuel costs over a year
At the EPA's 11,500 miles a year, the 2018 Cadillac CT6 Plug-In burns 460 to 460 gallons depending on configuration. Below is what that costs at three pump prices, and how much more the thirstiest configuration costs than the most efficient one.
| Pump price | Most efficient | Thirstiest | Spread |
|---|---|---|---|
| $3.00/gal | $1,380 | $1,380 | $0 |
| $3.50/gal | $1,610 | $1,610 | $0 |
| $4.00/gal | $1,840 | $1,840 | $0 |
EPA’s own estimate for the 2018 model year is $3,100 to $3,100 a year in fuel, or $1,250 less than the average new vehicle over five years.
How it compares with other Midsize Cars
Across the 483 nameplates EPA classifies as Midsize Cars, the median best combined rating is 25 mpg. At 25 mpg the Cadillac CT6 Plug-In is exactly at the median.
- All Midsize Cars rankings — every nameplate in the class, best to worst.
Other Cadillac nameplates
Every Cadillac model compared → — all nameplates ranked by best combined rating, with what each one costs a year.