2018 Mercedes-Benz AMG GLS63 vs 2018 Mercedes-Benz AMG GT Roadster
| EPA figure | 2018 Mercedes-Benz AMG GLS63 | 2018 Mercedes-Benz AMG GT Roadster |
|---|---|---|
| Model year | 2018 | 2018 |
| Body · drive | SUV · 4-Wheel Drive · Gas | Two Seaters · Rear-Wheel Drive · Gas |
| Combined MPG | 15 | 18 |
| City / highway MPG | 13 / 18 | 16 / 21 |
| Fuel a year | $5,500 | $4,550 |
| Tailpipe CO₂ (g/mi) | 591 | 490 |
| Engine | 5.5 L 8-cyl turbo | 4.0 L 8-cyl turbo |
| Transmission | Automatic 7-spd | Automatic (AM7) |
▲ marks the better official figure on that line: more range, MPG or MPGe; less fuel cost or CO₂. From fueleconomy.gov.