2025 Porsche Panamera GTS vs 2026 Mercedes-Benz Maybach S680 4matic
| EPA figure | 2025 Porsche Panamera GTS | 2026 Mercedes-Benz Maybach S680 4matic |
|---|---|---|
| Model year | 2025 | 2026 |
| Body · drive | Large · All-Wheel Drive · Gas | Large · All-Wheel Drive · Gas |
| Combined MPG | 18 | 15 |
| City / highway MPG | 16 / 24 | 12 / 20 |
| Fuel a year | $4,550 | $5,500 |
| Tailpipe CO₂ (g/mi) | 495 | 603 |
| Engine | 4.0 L 8-cyl turbo | 6.0 L 12-cyl turbo |
| Transmission | Automatic (AM-S8) | Automatic 9-spd |
▲ marks the better official figure on that line: more range, MPG or MPGe; less fuel cost or CO₂. From fueleconomy.gov.