2015 Audi R8 Spyder vs 2015 Audi S4
| EPA figure | 2015 Audi R8 Spyder | 2015 Audi S4 |
|---|---|---|
| Model year | 2015 | 2015 |
| Body · drive | Two Seaters · All-Wheel Drive · Gas | Compact · All-Wheel Drive · Gas |
| Combined MPG | 16 | 21 |
| City / highway MPG | 13 / 22 | 18 / 28 |
| Fuel a year | $5,150 | $3,900 |
| Tailpipe CO₂ (g/mi) | 557 | 413 |
| Engine | 5.2 L 10-cyl | 3.0 L 6-cyl supercharged |
| 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.