1991 Porsche 911 Carrera 4/2 vs 1991 Porsche 928 S4
| EPA figure | 1991 Porsche 911 Carrera 4/2 | 1991 Porsche 928 S4 |
|---|---|---|
| Model year | 1991 | 1991 |
| Body · drive | Minicompact · Rear-Wheel Drive · Gas | Minicompact · Rear-Wheel Drive · Gas |
| Combined MPG | 17 | 15 |
| City / highway MPG | 15 / 22 | 14 / 17 |
| Fuel a year | $4,850 | $5,500 |
| Tailpipe CO₂ (g/mi) | 523 | 592 |
| Engine | 3.6 L 6-cyl | 5.0 L 8-cyl |
| Transmission | Manual 5-spd | Automatic 4-spd |
▲ marks the better official figure on that line: more range, MPG or MPGe; less fuel cost or CO₂. From fueleconomy.gov.