2017 Cadillac ATS vs 2018 Cadillac XTS
| EPA figure | 2017 Cadillac ATS | 2018 Cadillac XTS |
|---|---|---|
| Model year | 2017 | 2018 |
| Body · drive | Compact · Rear-Wheel Drive · Gas | Large · Front-Wheel Drive · Gas |
| Combined MPG | 23 | 22 |
| City / highway MPG | 20 / 29 | 19 / 28 |
| Fuel a year | $3,550 | $3,050 |
| Tailpipe CO₂ (g/mi) | 379 | 404 |
| Engine | 2.0 L 4-cyl turbo | 3.6 L 6-cyl |
| Transmission | Manual 6-spd | Automatic (S6) |
▲ marks the better official figure on that line: more range, MPG or MPGe; less fuel cost or CO₂. From fueleconomy.gov.