1990 Pontiac Turbo Firefly vs 1990 Porsche 928 S4
| EPA figure | 1990 Pontiac Turbo Firefly | 1990 Porsche 928 S4 |
|---|---|---|
| Model year | 1990 | 1990 |
| Body · drive | Subcompact · Front-Wheel Drive · Gas | Minicompact · Rear-Wheel Drive · Gas |
| Combined MPG | 34 | 14 |
| City / highway MPG | 31 / 38 | 11 / 18 |
| Fuel a year | $1,950 | $5,850 |
| Tailpipe CO₂ (g/mi) | 261 | 635 |
| Engine | 1.0 L 3-cyl turbo | 5.0 L 8-cyl |
| Transmission | Manual 5-spd | Manual 5-spd |
▲ marks the better official figure on that line: more range, MPG or MPGe; less fuel cost or CO₂. From fueleconomy.gov.