2017 Cadillac ATS vs 2018 Cadillac XTS AWD
| EPA figure | 2017 Cadillac ATS | 2018 Cadillac XTS AWD |
|---|---|---|
| Model year | 2017 | 2018 |
| Body · drive | Compact · Rear-Wheel Drive · Gas | Large · All-Wheel Drive · Gas |
| Combined MPG | 26 | 20 |
| City / highway MPG | 22 / 32 | 17 / 26 |
| Fuel a year | $2,600 | $3,350 |
| Tailpipe CO₂ (g/mi) | 347 | 444 |
| Engine | 2.5 L 4-cyl | 3.6 L 6-cyl |
| Transmission | Automatic (S8) | Automatic (S6) |
▲ marks the better official figure on that line: more range, MPG or MPGe; less fuel cost or CO₂. From fueleconomy.gov.