2006 Audi A6 quattro vs 2006 Audi S4
| EPA figure | 2006 Audi A6 quattro | 2006 Audi S4 |
|---|---|---|
| Model year | 2006 | 2006 |
| Body · drive | Midsize · 4-Wheel or All-Wheel Drive · Gas | Compact · 4-Wheel or All-Wheel Drive · Gas |
| Combined MPG | 18 | 16 |
| City / highway MPG | 15 / 21 | 13 / 20 |
| Fuel a year | $4,550 | $5,150 |
| Tailpipe CO₂ (g/mi) | 494 | 555 |
| Engine | 4.2 L 8-cyl | 4.2 L 8-cyl |
| Transmission | Automatic (S6) | Manual 6-spd |
▲ marks the better official figure on that line: more range, MPG or MPGe; less fuel cost or CO₂. From fueleconomy.gov.