1984 Buick Regal vs 1984 Buick Riviera
| EPA figure | 1984 Buick Regal | 1984 Buick Riviera |
|---|---|---|
| Model year | 1984 | 1984 |
| Body · drive | Midsize · Diesel | Midsize · Diesel |
| Combined MPG | 22 | 21 |
| City / highway MPG | 19 / 29 | 18 / 26 |
| Fuel a year | $4,350 | $4,550 |
| Tailpipe CO₂ (g/mi) | 463 | 485 |
| Engine | 4.3 L 6-cyl | 5.7 L 8-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.