The current Subaru Impreza covers up to 759 km on a full tank, based on combined-cycle consumption. Figures below are the best-range variant in each generation.
| Years | Powertrain | Range |
|---|---|---|
| 1993–1997 | Combustion | 645 |
| 1997–1998 | Combustion | 588 |
| 1998–2000 | Combustion | 602 |
| 2000–2003 | Combustion | 562 |
| 2003–2005 | Combustion | 652 |
| 2005–2007 | Combustion | 759 |
Range is calculated from each variant’s fuel tank capacity and combined-cycle consumption (tank ÷ consumption × 100), for the best-range variant in each generation — real-world range varies with driving style and conditions. Figures outside a plausible range for the tank size are excluded.