1991 Pontiac Firefly vs 1991 Pontiac Grand Prix
| EPA figure | 1991 Pontiac Firefly | 1991 Pontiac Grand Prix |
|---|---|---|
| Model year | 1991 | 1991 |
| Body · drive | Subcompact · Front-Wheel Drive · Gas | Midsize · Front-Wheel Drive · Gas |
| Combined MPG | 40 | 20 |
| City / highway MPG | 37 / 45 | 17 / 28 |
| Fuel a year | $1,700 | $3,350 |
| Tailpipe CO₂ (g/mi) | 222 | 444 |
| Engine | 1.0 L 3-cyl | 3.1 L 6-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.