2018 Audi R8 Spyder RWD vs 2018 Audi S4
| EPA figure | 2018 Audi R8 Spyder RWD | 2018 Audi S4 |
|---|---|---|
| Model year | 2018 | 2018 |
| Body · drive | Two Seaters · Rear-Wheel Drive · Gas | Compact · All-Wheel Drive · Gas |
| Combined MPG | 18 | 24 |
| City / highway MPG | 14 / 25 | 21 / 30 |
| Fuel a year | $4,550 | $3,400 |
| Tailpipe CO₂ (g/mi) | 497 | 374 |
| Engine | 5.2 L 10-cyl | 3.0 L 6-cyl turbo |
| Transmission | Automatic (AM-S7) | Automatic (AM-S8) |
▲ marks the better official figure on that line: more range, MPG or MPGe; less fuel cost or CO₂. From fueleconomy.gov.