The current Alfa Romeo Spider covers up to 1,296 km on a full tank, based on combined-cycle consumption. Figures below are the best-range variant in each generation.
| Years | Powertrain | Range |
|---|---|---|
| 1971–1983 | Combustion | 447 |
| 1983–1990 | Combustion | 484 |
| 1990–1993 | Combustion | 535 |
| 1995–1998 | Combustion | 729 |
| 1998–2003 | Combustion | 787 |
| 2003–2006 | Combustion | 761 |
| 2006–2008 | Combustion | 1,029 |
| 2008–2011 | Combustion | 1,296 |
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.