2026 Mercedes-Benz SL680 Maybach vs 2027 Audi RS Q8 Performance
| EPA figure | 2026 Mercedes-Benz SL680 Maybach | 2027 Audi RS Q8 Performance |
|---|---|---|
| Model year | 2026 | 2027 |
| Body · drive | Minicompact · All-Wheel Drive · Gas | SUV · All-Wheel Drive · Hybrid |
| Combined MPG | 16 | 16 |
| City / highway MPG | 13 / 20 | 14 / 20 |
| Fuel a year | $5,150 | $5,150 |
| Tailpipe CO₂ (g/mi) | 558 | 547 |
| Engine | 4.0 L 8-cyl turbo | 4.0 L 8-cyl turbo |
| Transmission | Automatic 9-spd | Automatic (S8) |
▲ marks the better official figure on that line: more range, MPG or MPGe; less fuel cost or CO₂. From fueleconomy.gov.