1984 Buick Riviera vs 1984 Buick Riviera Convertible
| EPA figure | 1984 Buick Riviera | 1984 Buick Riviera Convertible |
|---|---|---|
| Model year | 1984 | 1984 |
| Body · drive | Midsize · Diesel | Compact · Gas |
| Combined MPG | 21 | 15 |
| City / highway MPG | 18 / 26 | 13 / 19 |
| Fuel a year | $4,550 | $4,450 |
| Tailpipe CO₂ (g/mi) | 485 | 592 |
| Engine | 5.7 L 8-cyl | 4.1 L 6-cyl |
| Transmission | Automatic 4-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.