2007 Pontiac G6 GT/GTP Convertible vs 2007 Pontiac Grand Prix
| EPA figure | 2007 Pontiac G6 GT/GTP Convertible | 2007 Pontiac Grand Prix |
|---|---|---|
| Model year | 2007 | 2007 |
| Body · drive | Compact · Front-Wheel Drive · Gas | Midsize · Front-Wheel Drive · Gas |
| Combined MPG | 18 | 19 |
| City / highway MPG | 15 / 22 | 16 / 25 |
| Fuel a year | $3,700 | $4,350 |
| Tailpipe CO₂ (g/mi) | 494 | 468 |
| Engine | 3.9 L 6-cyl | 5.3 L 8-cyl |
| Transmission | Automatic (S4) | Automatic (S4) |
▲ marks the better official figure on that line: more range, MPG or MPGe; less fuel cost or CO₂. From fueleconomy.gov.