2014 Audi S4 vs 2014 Audi S6
| EPA figure | 2014 Audi S4 | 2014 Audi S6 |
|---|---|---|
| Model year | 2014 | 2014 |
| Body · drive | Compact · All-Wheel Drive · Gas | Midsize · All-Wheel Drive · Gas |
| Combined MPG | 21 | 20 |
| City / highway MPG | 18 / 28 | 17 / 27 |
| Fuel a year | $3,900 | $4,100 |
| Tailpipe CO₂ (g/mi) | 413 | 441 |
| Engine | 3.0 L 6-cyl supercharged | 4.0 L 8-cyl turbo |
| Transmission | Automatic (AM-S7) | Automatic (AM-S7) |
▲ marks the better official figure on that line: more range, MPG or MPGe; less fuel cost or CO₂. From fueleconomy.gov.