2014 Cadillac ATS vs 2015 Cadillac XTS
| EPA figure | 2014 Cadillac ATS | 2015 Cadillac XTS |
|---|---|---|
| Model year | 2014 | 2015 |
| Body · drive | Compact · Rear-Wheel Drive · Gas | Large · Front-Wheel Drive · Gas |
| Combined MPG | 26 | 21 |
| City / highway MPG | 22 / 32 | 18 / 28 |
| Fuel a year | $2,600 | $3,200 |
| Tailpipe CO₂ (g/mi) | 344 | 419 |
| Engine | 2.5 L 4-cyl | 3.6 L 6-cyl |
| Transmission | Automatic (S6) | Automatic (S6) |
▲ marks the better official figure on that line: more range, MPG or MPGe; less fuel cost or CO₂. From fueleconomy.gov.