2026 Audi S5 Sport Sedan vs 2026 Mercedes-Benz S500 4matic
| EPA figure | 2026 Audi S5 Sport Sedan | 2026 Mercedes-Benz S500 4matic |
|---|---|---|
| Model year | 2026 | 2026 |
| Body · drive | Midsize · All-Wheel Drive · Gas | Large · All-Wheel Drive · Hybrid |
| Combined MPG | 23 | 23 |
| City / highway MPG | 20 / 29 | 20 / 29 |
| Fuel a year | $3,550 | $3,550 |
| Tailpipe CO₂ (g/mi) | 386 | 380 |
| Engine | 3.0 L 6-cyl turbo | 3.0 L 6-cyl turbo supercharged |
| Transmission | Automatic (AM-S7) | Automatic 9-spd |
▲ marks the better official figure on that line: more range, MPG or MPGe; less fuel cost or CO₂. From fueleconomy.gov.