2018 Porsche 911 Carrera 4S Cabriolet vs 2018 Porsche 911 Carrera GTS
| EPA figure | 2018 Porsche 911 Carrera 4S Cabriolet | 2018 Porsche 911 Carrera GTS |
|---|---|---|
| Model year | 2018 | 2018 |
| Body · drive | Minicompact · 4-Wheel Drive · Gas | Minicompact · Rear-Wheel Drive · Gas |
| Combined MPG | 24 | 23 |
| City / highway MPG | 21 / 28 | 20 / 26 |
| Fuel a year | $3,400 | $3,550 |
| Tailpipe CO₂ (g/mi) | 371 | 391 |
| Engine | 3.0 L 6-cyl turbo | 3.0 L 6-cyl turbo |
| Transmission | Automatic (AM-S7) | Automatic (AM-S7) |
▲ marks the better official figure on that line: more range, MPG or MPGe; less fuel cost or CO₂. From fueleconomy.gov.