2005 Pontiac Bonneville
2 configurations — EPA fuel economy ratings
| Trim / Variant | City MPG | Hwy MPG | Combined MPG | Fuel | Drive | Engine | Transmission |
|---|---|---|---|---|---|---|---|
| Bonneville | 15 | 22 | 18 | Regular Gasoline | Front-Wheel Drive | 4.6L 8-cyl | Automatic 4-spd |
| Bonneville | 18 | 27 | 21 | Regular Gasoline | Front-Wheel Drive | 3.8L 6-cyl | Automatic 4-spd |