The current Audi A6 covers up to 104 km on a full charge. Figures below are the longest-range variant in each generation.
| Years | Powertrain | Range |
|---|---|---|
| 1994–1997 | Combustion | 1,250 |
| 1998–2001 | Combustion | 1,207 |
| 1999–2001 | Combustion | 577 |
| 2000–2006 | Combustion | 805 |
| 2001–2004 | Combustion | 1,228 |
| 2002–2004 | Combustion | 562 |
| 2005–2008 | Combustion | 1,094 |
| 2006–2008 | Combustion | 952 |
| 2008–2011 | Combustion | 1,321 |
| 2011–2014 | Combustion | 1,300 |
| 2012–2014 | Combustion | 1,190 |
| 2013–2014 | Combustion | 765 |
| 2014–2018 | Combustion | 1,377 |
| 2015–2018 | Combustion | 781 |
| 2018–2025 | Electric | 66 |
| 2019–2024 | Combustion | 1,281 |
| 2025–present | Electric | 104 |
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.