Fuel tank: 11 of 11 variants rated.
Audi A2 1.6 FSI Pro Line tops the Audi A2 ranking by Fuel tank, at 42 L (11.1 gal US).
Across 11 ranked variants, Fuel tank spans from 34 L (9.0 gal US) to 42 L (11.1 gal US).
| # | Variant | Year | Body | Fuel | Fuel tank |
|---|---|---|---|---|---|
| 1 | Audi A2 1.6 FSI Pro Line | 2004 | MPV | Petrol | 42 L (11.1 gal US) |
| 2 | Audi A2 1.4 TDI 90hp | 2004 | MPV | Diesel | 42 L (11.1 gal US) |
| 3 | Audi A2 1.4 TDI 90hp Pro Line | 2004 | MPV | Diesel | 42 L (11.1 gal US) |
| 4 | Audi A2 1.4 Pro Line | 2003 | MPV | Petrol | 42 L (11.1 gal US) |
| 5 | Audi A2 1.6 FSI | 2003 | MPV | Petrol | 42 L (11.1 gal US) |
| 6 | Audi A2 1.4 TDI Pro Line | 2003 | MPV | Diesel | 42 L (11.1 gal US) |
| 7 | Audi A2 1.4 | 2000 | MPV | Petrol | 42 L (11.1 gal US) |
| 8 | Audi A2 1.4 Exclusive | 2000 | MPV | Petrol | 42 L (11.1 gal US) |
| 9 | Audi A2 1.4 TDI | 2000 | MPV | Diesel | 42 L (11.1 gal US) |
| 10 | Audi A2 1.4 TDI Exclusive | 2000 | MPV | Diesel | 42 L (11.1 gal US) |
| 11 | Audi A2 1.2 TDI 3L | 2001 | MPV | Diesel | 34 L (9.0 gal US) |