The current Maserati GranCabrio covers up to 422 km on a full charge. Figures below are the longest-range variant in each generation.
| Years | Powertrain | Range |
|---|---|---|
| 2010–2018 | Combustion | 521 |
| 2018–2021 | Combustion | 517 |
| 2024–present | Electric | 422 |
Range is the manufacturer-rated maximum for the longest-range variant in each generation. Electric generations use the rated battery range; combustion generations are calculated from tank capacity and combined-cycle consumption. Figures outside a plausible range are excluded rather than shown with a guessed correction.