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AUDI A6 Fuel Economy
View fuel economy data for the AUDI A6 including combined, urban, and extra-urban MPG by variant.
| Model | Year | Combined | Urban | Extra Urban | Fuel Type |
|---|---|---|---|---|---|
| A6 Black Edition 40 TFSI MHEV SA | 2025 | 36.7 MPG | N/A | N/A | Petrol |
| A6 Black Edition 50TFSI E Quattro SA | 2025 | 201.8 MPG | N/A | N/A | Petrol/Electric |
| A6 Launch Edition TDI MHEV Q SA | 2025 | 49.6 MPG | N/A | N/A | Diesel |
| A6 S Line 50 TDI MHEV Quattro Auto | 2025 | 40.4 MPG | N/A | N/A | Diesel |
| RS 6 Performance TFSI MHEV Quattro A | 2025 | 22.4 MPG | N/A | N/A | Petrol |
| RS6 Performance Carbon Vorsprung TFSI MHEV Quattro A | 2025 | 22.4 MPG | N/A | N/A | Petrol |
| S6 Black Edition TDI MHEV quattro A | 2025 | 39.2 MPG | N/A | N/A | Diesel |
| A6 Black Edition 40TDI MHEV Quattro SA | 2024 | 46.3 MPG | N/A | N/A | Diesel |
| A6 Black Edition 50 TFSI E Quattro Semi-Auto | 2024 | 201.8 MPG | N/A | N/A | Petrol/Electric |
| A6 Black Edition 50TFSI E Quattro SA | 2024 | 188.3 MPG | N/A | N/A | Petrol/Electric |
| A6 S Line 40 TDI MHEV Quattro Semi-Auto | 2024 | 50.4 MPG | N/A | N/A | Diesel |
| A6 S Line 50 TDI MHEV Quattro Auto | 2024 | 40.4 MPG | N/A | N/A | Diesel |
| A6 S Line 50 TFSI E Quattro SA | 2024 | 188.3 MPG | N/A | N/A | Petrol/Electric |
| A6 S line 40 TFSI MHEV Semi-Auto | 2024 | 38.2 MPG | N/A | N/A | Petrol |
| A6 Sport 40 TFSI MHEV Semi-Auto | 2024 | 39.8 MPG | N/A | N/A | Petrol |
| RS 6 Performance TFSI MHEV Quattro A | 2024 | 22.4 MPG | N/A | N/A | Petrol |
| RS6 Performance Carbon Black TFSI MHEV Q A | 2024 | 22.4 MPG | N/A | N/A | Petrol |
| RS6 Performance Carbon Vorsprung TFSI MHEV Quattro A | 2024 | 22.4 MPG | N/A | N/A | Petrol |
| S6 Black Edition TDI MHEV quattro A | 2024 | 39.8 MPG | N/A | N/A | Diesel |
| A6 Black Edition 40 TDI MHEV Q Semi-Auto | 2023 | 47.1 MPG | N/A | N/A | Diesel |
| A6 Black Edition 40 TFSI MHEV Semi-Auto | 2023 | 36.7 MPG | N/A | N/A | Petrol |
| A6 Black Edition 40TDI MHEV Quattro SA | 2023 | 46.3 MPG | N/A | N/A | Diesel |
| A6 Black Edition 45 TFSI MHEV Q Semi-Auto | 2023 | 34.9 MPG | N/A | N/A | Petrol |
| A6 Black Edition 50 TFSI E Quattro Semi-Auto | 2023 | 201.8 MPG | N/A | N/A | Petrol/Electric |
| A6 S Line 40 TFSI MHEV Semi-Auto | 2023 | 38.2 MPG | N/A | N/A | Petrol |
| A6 S Line 50 TDI MHEV Quattro Auto | 2023 | 40.4 MPG | N/A | N/A | Diesel |
| A6 S Line 50 TFSI E Quattro Semi-Auto | 2023 | 235.4 MPG | N/A | N/A | Petrol/Electric |
| A6 S line 40 TFSI MHEV Semi-Auto | 2023 | 39.8 MPG | N/A | N/A | Petrol |
| A6 Sport 40 TDI MHEV Quattro Semi-Auto | 2023 | 50.4 MPG | N/A | N/A | Diesel |
| A6 Sport 40 TFSI MHEV Semi-Auto | 2023 | 39.2 MPG | N/A | N/A | Petrol |
| A6 Sport 50 TFSI E Quattro Semi-Auto | 2023 | 217.3 MPG | N/A | N/A | Petrol/Electric |
| RS 6 Carbon Black TFSI MHEV Quattro Auto | 2023 | 21.9 MPG | N/A | N/A | Petrol |
| RS 6 TFSI MHEV Quattro Auto | 2023 | 22.4 MPG | N/A | N/A | Petrol |
| RS 6 Vorsprung TFSI MHEV Quattro Auto | 2023 | 21.7 MPG | N/A | N/A | Petrol |
| RS6 Performance Carbon Vorsprung TFSI MHEV Quattro A | 2023 | 22.4 MPG | N/A | N/A | Petrol |
| A6 Black Edition 40 TDI MHEV Q Semi-Auto | 2022 | 47.1 MPG | N/A | N/A | Diesel |
| A6 Black Edition 40 TDI MHEV Semi-Auto | 2022 | 47.9 MPG | N/A | N/A | Diesel |
| A6 Black Edition 40 TDI Semi-Auto | 2022 | 50.4 MPG | N/A | N/A | Diesel |
| A6 Black Edition 40 TFSI MHEV Semi-Auto | 2022 | 36.7 MPG | N/A | N/A | Petrol |
| A6 Black Edition 45 TFSI MHEV Q Semi-Auto | 2022 | 34.9 MPG | N/A | N/A | Petrol |
| A6 Black Edition 50 TFSI E Quattro Semi-Auto | 2022 | 217.3 MPG | N/A | N/A | Petrol/Electric |
| A6 Black Edition 55 TFSI MHEV Quattro Semi-Auto | 2022 | 32.8 MPG | N/A | N/A | Petrol |
| A6 Competition 55 TFSI E Quattro Semi-Auto | 2022 | 217.3 MPG | N/A | N/A | Petrol/Electric |
| A6 S Line 40 TDI MHEV Quattro Semi-Auto | 2022 | 50.4 MPG | N/A | N/A | Diesel |
| A6 S Line 40 TDI MHEV Semi-Auto | 2022 | 50.4 MPG | N/A | N/A | Diesel |
| A6 S Line 40 TFSI MHEV Semi-Auto | 2022 | 39.2 MPG | N/A | N/A | Petrol |
| A6 S Line 50 TDI MHEV Quattro Auto | 2022 | 40.4 MPG | N/A | N/A | Diesel |
| A6 S Line 50 TFSI E Quattro Semi-Auto | 2022 | 217.3 MPG | N/A | N/A | Petrol/Electric |
| A6 Sport 40 TDI MHEV Semi-Auto | 2022 | 50.4 MPG | N/A | N/A | Diesel |
| A6 Sport 40 TFSI MHEV Semi-Auto | 2022 | 39.2 MPG | N/A | N/A | Petrol |
| A6 Vorsprung 40 TFSI MHEV Semi-Auto | 2022 | 37.7 MPG | N/A | N/A | Petrol |
| A6 Vorsprung 50 TDI MHEV Quattro Auto | 2022 | 38.7 MPG | N/A | N/A | Diesel |
| RS 6 Carbon Black TFSI MHEV Quattro Auto | 2022 | 21.9 MPG | N/A | N/A | Petrol |
| RS 6 Vorsprung TFSI MHEV Quattro Auto | 2022 | 21.7 MPG | N/A | N/A | Petrol |
| S6 Black Edition TDI MHEV Quattro Auto | 2022 | 40.4 MPG | N/A | N/A | Diesel |
| A6 Allroad Sport 55 TFSI MHEV Q Auto | 2021 | 31.4 MPG | N/A | N/A | Petrol |
| A6 Black Edition 40 TDI MHEV Q Semi-Auto | 2021 | 47.1 MPG | N/A | N/A | Diesel |
| A6 Black Edition 40 TDI MHEV Semi-Auto | 2021 | 49.6 MPG | N/A | N/A | Diesel |
| A6 Black Edition 40 TDI Quattro Semi-Auto | 2021 | 47.1 MPG | N/A | N/A | Diesel |
| A6 Black Edition 40 TDI Semi-Auto | 2021 | 50.4 MPG | N/A | N/A | Diesel |
| A6 Black Edition 40 TFSI MHEV Semi-Auto | 2021 | 36.7 MPG | N/A | N/A | Petrol |
| A6 Black Edition 45 TFSI MHEV Q Semi-Auto | 2021 | 35.8 MPG | N/A | N/A | Petrol |
| A6 Black Edition 50 TFSI E Quattro Semi-Auto | 2021 | 217.3 MPG | N/A | N/A | Petrol/Electric |
| A6 Black Edition 55 TFSI Quattro Semi-Auto | 2021 | 31.4 MPG | N/A | N/A | Petrol |
| A6 S Line 40 TDI MHEV Quattro Semi-Auto | 2021 | 48.7 MPG | N/A | N/A | Diesel |
| A6 S Line 40 TDI MHEV Semi-Auto | 2021 | 50.4 MPG | N/A | N/A | Diesel |
| A6 S Line 40 TDI Quattro Semi-Auto | 2021 | 47.1 MPG | N/A | N/A | Diesel |
| A6 S Line 40 TDI Semi-Auto | 2021 | 50.4 MPG | N/A | 67.3 MPG | Diesel |
| A6 S Line 40 TFSI MHEV Semi-Auto | 2021 | 38.2 MPG | N/A | N/A | Petrol |
| A6 S Line 45 TFSI MHEV Quattro Semi-Auto | 2021 | 35.8 MPG | N/A | N/A | Petrol |
| A6 S Line 50 TFSI E Quattro Semi-Auto | 2021 | 235.4 MPG | N/A | N/A | Petrol/Electric |
| A6 Sport 40 TDI Semi-Auto | 2021 | 50.4 MPG | N/A | 67.3 MPG | Diesel |
| A6 Sport 40 TFSI MHEV Semi-Auto | 2021 | 39.2 MPG | N/A | N/A | Petrol |
| A6 Sport 45 TFSI MHEV Quattro Semi-Auto | 2021 | 37.2 MPG | N/A | N/A | Petrol |
| A6 Sport 50 TFSI E Quattro Semi-Auto | 2021 | 188.3 MPG | N/A | N/A | Petrol/Electric |
| RS 6 Carbon Black TFSI MHEV Quattro Auto | 2021 | 22.2 MPG | N/A | N/A | Petrol |
| RS 6 Vorsprung TFSI MHEV Quattro Auto | 2021 | 22.1 MPG | N/A | N/A | Petrol |
| S6 TDI Quattro Auto | 2021 | 35.8 MPG | N/A | N/A | Diesel |
| S6 Vorsprung TDI Quattro Auto | 2021 | 35.3 MPG | N/A | N/A | Diesel |
| A6 Allroad Sport 50 TDI MHEV Quattro Auto | 2020 | 37.7 MPG | N/A | N/A | Diesel |
| A6 Black Edition 40 TDI Quattro Semi-Auto | 2020 | 45.6 MPG | N/A | N/A | Diesel |
| A6 Black Edition 40 TDI Semi-Auto | 2020 | 50.4 MPG | N/A | N/A | Diesel |
| A6 Black Edition 45 TFSI Quattro Semi-Auto | 2020 | 34 MPG | N/A | N/A | Petrol |
| A6 Black Edition 50 TFSI E Quattro Semi-Auto | 2020 | 148.7 MPG | N/A | N/A | Petrol/Electric |
| A6 Black Edition 55 TFSI Quattro Semi-Auto | 2020 | 30.7 MPG | N/A | N/A | Petrol |
| A6 S Line 40 TDI Semi-Auto | 2020 | 50.4 MPG | N/A | 67.3 MPG | Diesel |
| A6 S Line 45 TFSI MHEV Quattro Semi-Auto | 2020 | 37.2 MPG | N/A | N/A | Petrol |
| A6 S Line 45 TFSI Quattro Semi-Auto | 2020 | 34 MPG | N/A | N/A | Petrol |
| A6 S Line 50 TFSI E Quattro Semi-Auto | 2020 | 188.3 MPG | N/A | N/A | Petrol/Electric |
| A6 S Line 55 TFSI Quattro Semi-Auto | 2020 | 30.7 MPG | N/A | N/A | Petrol |
| A6 Sport 40 TDI Semi-Auto | 2020 | 47.9 MPG | N/A | 64.2 MPG | Diesel |
| A6 Sport 45 TFSI Quattro Semi-Auto | 2020 | 34 MPG | N/A | N/A | Petrol |
| A6 Sport 50 TFSI E Quattro Semi-Auto | 2020 | 188.3 MPG | N/A | N/A | Petrol/Electric |
| A6 Vorsprung 45 TFSI MHEV Quattro Semi-Auto | 2020 | 32.8 MPG | N/A | N/A | Petrol |
| RS 6 Carbon Black TFSI MHEV Quattro Auto | 2020 | 22.2 MPG | N/A | N/A | Petrol |
| RS 6 Launch Edition TFSI MHEV Quattro Auto | 2020 | 22.1 MPG | N/A | N/A | Petrol |
| RS 6 TFSI MHEV Quattro Auto | 2020 | 22.6 MPG | N/A | N/A | Petrol |
| RS 6 Vorsprung TFSI MHEV Quattro Auto | 2020 | 22.1 MPG | N/A | N/A | Petrol |
| S6 TDI Quattro Auto | 2020 | 36.2 MPG | N/A | N/A | Diesel |
| A6 Allroad Sport 45 TDI MHEV Quattro Auto | 2019 | 37.7 MPG | N/A | N/A | Diesel |
| A6 Allroad Sport 50 TDI MHEV Quattro Auto | 2019 | 37.7 MPG | N/A | N/A | Diesel |
| A6 Black Edition 40 TDI Quattro Semi-Auto | 2019 | 45.6 MPG | N/A | N/A | Diesel |
| A6 Black Edition 40 TDI Semi-Auto | 2019 | 50.4 MPG | N/A | N/A | Diesel |
| A6 Black Edition 45 TFSI Quattro Semi-Auto | 2019 | 34 MPG | N/A | N/A | Petrol |
| A6 Black Edition 50 TDI Quattro Semi-Auto | 2019 | 39.8 MPG | N/A | N/A | Diesel |
| A6 S Line 40 TDI Quattro Semi-Auto | 2019 | 47.1 MPG | N/A | N/A | Diesel |
| A6 S Line 40 TDI Semi-Auto | 2019 | 47.9 MPG | N/A | 64.2 MPG | Diesel |
| A6 S Line 45 TFSI Quattro Semi-Auto | 2019 | 34.9 MPG | N/A | N/A | Petrol |
| A6 S Line 50 TDI Quattro Semi-Auto | 2019 | 39.2 MPG | N/A | 52.3 MPG | Diesel |
| A6 S Line 55 TFSI Quattro Semi-Auto | 2019 | 30.7 MPG | N/A | N/A | Petrol |
| A6 SE Executive TDI Ultra | 2019 | 65.7 MPG | N/A | 74.3 MPG | Diesel |
| A6 Sport 40 TDI Semi-Auto | 2019 | 50.4 MPG | N/A | 67.3 MPG | Diesel |
| A6 Sport 45 TFSI Quattro Semi-Auto | 2019 | 34.9 MPG | N/A | N/A | Petrol |
| A6 Sport 50 TDI Quattro Semi-Auto | 2019 | 39.8 MPG | N/A | 54.3 MPG | Diesel |
| S6 TDI Quattro Auto | 2019 | 35.8 MPG | N/A | N/A | Diesel |
| A6 Allroad Sport TDI Quattro Auto | 2018 | 43.5 MPG | N/A | 48.7 MPG | Diesel |
| A6 Allroad Sport TDI Quattro Semi-Auto | 2018 | 51.4 MPG | N/A | 54.3 MPG | Diesel |
| A6 Allroad TDI Quattro Auto | 2018 | 43.5 MPG | N/A | 48.7 MPG | Diesel |
| A6 Allroad TDI Quattro Semi-Auto | 2018 | 50.4 MPG | N/A | 54.3 MPG | Diesel |
| A6 Black Edition TDI Quattro Auto | 2018 | 44.1 MPG | N/A | 49.6 MPG | Diesel |
| A6 Black Edition TDI Quattro Semi-Auto | 2018 | 56.5 MPG | N/A | 61.4 MPG | Diesel |
| A6 Black Edition TDI Ultra Semi-Auto | 2018 | 61.4 MPG | N/A | 68.9 MPG | Diesel |
| A6 Black Edition TFSI Quattro Semi-Auto | 2018 | 39.8 MPG | N/A | 45.6 MPG | Petrol |
| A6 Black Edition TFSI Semi-Auto | 2018 | 47.9 MPG | N/A | 54.3 MPG | Petrol |
| A6 S Line 40 TDI Semi-Auto | 2018 | 47.9 MPG | N/A | 64.2 MPG | Diesel |
| A6 S Line 50 TDI Quattro Semi-Auto | 2018 | 39.8 MPG | N/A | 54.3 MPG | Diesel |
| A6 S Line TDI Quattro Semi-Auto | 2018 | 55.4 MPG | N/A | 61.4 MPG | Diesel |
| A6 S Line TDI Ultra | 2018 | 64.2 MPG | N/A | 72.4 MPG | Diesel |
| A6 S Line TDI Ultra Semi-Auto | 2018 | 61.4 MPG | N/A | 68.9 MPG | Diesel |
| A6 S Line TFSI Semi-Auto | 2018 | 49.6 MPG | N/A | 56.5 MPG | Petrol |
| A6 SE Executive TDI Quattro Semi-Auto | 2018 | 57.7 MPG | N/A | 64.2 MPG | Diesel |
| A6 SE Executive TDI Ultra | 2018 | 65.7 MPG | N/A | 74.3 MPG | Diesel |
| A6 SE Executive TDI Ultra Semi-Auto | 2018 | 67.3 MPG | N/A | 72.4 MPG | Diesel |
| A6 SE Executive TFSI Semi-Auto | 2018 | 50.4 MPG | N/A | 58.9 MPG | Petrol |
| A6 Sport 40 TDI Semi-Auto | 2018 | 47.9 MPG | N/A | 64.2 MPG | Diesel |
| A6 Sport 50 TDI Quattro Semi-Auto | 2018 | 39.2 MPG | N/A | 52.3 MPG | Diesel |
| RS 6 Performance TFSI Quattro Auto | 2018 | 29.4 MPG | N/A | 38.2 MPG | Petrol |
| RS 6 TFSI V8 Quattro Auto | 2018 | 29.4 MPG | N/A | 38.2 MPG | Petrol |
| S6 Black Edition TFSI Quattro Semi-Auto | 2018 | 29.4 MPG | N/A | 38.7 MPG | Petrol |
| S6 V8t TFSI Quattro Semi-Auto | 2018 | 30.1 MPG | N/A | 39.8 MPG | Petrol |
| A6 Allroad Sport TDI Quattro Auto | 2017 | 43.5 MPG | N/A | 48.7 MPG | Diesel |
| A6 Allroad Sport TDI Quattro Semi-Auto | 2017 | 50.4 MPG | N/A | 54.3 MPG | Diesel |
| A6 Allroad TDI Quattro Semi-Auto | 2017 | 50.4 MPG | N/A | 54.3 MPG | Diesel |
| A6 Black Edition TDI Quattro Auto | 2017 | 44.1 MPG | N/A | 49.6 MPG | Diesel |
| A6 Black Edition TDI Quattro Semi-Auto | 2017 | 56.5 MPG | N/A | 61.4 MPG | Diesel |
| A6 Black Edition TDI Ultra | 2017 | 61.4 MPG | N/A | 70.6 MPG | Diesel |
| A6 Black Edition TDI Ultra Semi-Auto | 2017 | 61.4 MPG | N/A | 68.9 MPG | Diesel |
| A6 S Line TDI Quattro Semi-Auto | 2017 | 55.4 MPG | N/A | 61.4 MPG | Diesel |
| A6 S Line TDI Ultra | 2017 | 64.2 MPG | N/A | 72.4 MPG | Diesel |
| A6 S Line TDI Ultra Semi-Auto | 2017 | 64.2 MPG | N/A | 72.4 MPG | Diesel |
| A6 S Line TFSI Semi-Auto | 2017 | 47.9 MPG | N/A | 55.4 MPG | Petrol |
| A6 SE Executive TDI Quattro Semi-Auto | 2017 | 55.4 MPG | N/A | 61.4 MPG | Diesel |
| A6 SE Executive TDI Ultra | 2017 | 65.7 MPG | N/A | 74.3 MPG | Diesel |
| A6 SE Executive TDI Ultra Semi-Auto | 2017 | 67.3 MPG | N/A | 72.4 MPG | Diesel |
| RS 6 Performance TFSI Quattro Auto | 2017 | 29.4 MPG | N/A | 38.2 MPG | Petrol |
| RS 6 TFSI V8 Quattro Auto | 2017 | 29.4 MPG | N/A | 38.2 MPG | Petrol |
| S6 Black Edition TFSI Quattro Semi-Auto | 2017 | 30.1 MPG | N/A | 39.8 MPG | Petrol |
| S6 V8t TFSI Quattro Semi-Auto | 2017 | 30.1 MPG | N/A | 39.8 MPG | Petrol |
| A6 Allroad Sport TDI Quattro Auto | 2016 | 43.5 MPG | N/A | 48.7 MPG | Diesel |
| A6 Allroad Sport TDI Quattro Semi-Auto | 2016 | 51.4 MPG | N/A | 54.3 MPG | Diesel |
| A6 Allroad TDI Quattro Semi-Auto | 2016 | 51.4 MPG | N/A | 54.3 MPG | Diesel |
| A6 Black Edition TDI Quattro Auto | 2016 | 45.6 MPG | N/A | 51.4 MPG | Diesel |
| A6 Black Edition TDI Quattro Semi-Auto | 2016 | 54.3 MPG | N/A | 58.9 MPG | Diesel |
| A6 Black Edition TDI Semi-Auto | 2016 | 61.4 MPG | N/A | 62.8 MPG | Diesel |
| A6 Black Edition TDI Ultra | 2016 | 61.4 MPG | N/A | 70.6 MPG | Diesel |
| A6 Black Edition TDI Ultra Semi-Auto | 2016 | 58.9 MPG | N/A | 65.7 MPG | Diesel |
| A6 S Line TDI Quattro Semi-Auto | 2016 | 55.4 MPG | N/A | 61.4 MPG | Diesel |
| A6 S Line TDI Semi-Auto | 2016 | 64.2 MPG | N/A | 67.3 MPG | Diesel |
| A6 S Line TDI Ultra | 2016 | 64.2 MPG | N/A | 72.4 MPG | Diesel |
| A6 S Line TDI Ultra Semi-Auto | 2016 | 61.4 MPG | N/A | 68.9 MPG | Diesel |
| A6 SE Executive TDI Quattro Semi-Auto | 2016 | 55.4 MPG | N/A | 61.4 MPG | Diesel |
| A6 SE Executive TDI Ultra | 2016 | 65.7 MPG | N/A | 74.3 MPG | Diesel |
| A6 SE Executive TDI Ultra Semi-Auto | 2016 | 64.2 MPG | N/A | 68.9 MPG | Diesel |
| A6 SE TDI Quattro Semi-Auto | 2016 | 55.4 MPG | N/A | 58.9 MPG | Diesel |
| A6 SE TDI Semi-Auto | 2016 | 62.8 MPG | N/A | 65.7 MPG | Diesel |
| A6 SE TDI Ultra | 2016 | 64.2 MPG | N/A | 72.4 MPG | Diesel |
| A6 SE TDI Ultra Semi-Auto | 2016 | 61.4 MPG | N/A | 68.9 MPG | Diesel |
| RS 6 Performance TFSI Quattro Auto | 2016 | 29.4 MPG | N/A | 38.2 MPG | Petrol |
| RS 6 TFSI V8 Quattro Auto | 2016 | 29.4 MPG | N/A | 38.2 MPG | Petrol |
| S6 V8t TFSI Quattro Semi-Auto | 2016 | 30.7 MPG | N/A | 40.9 MPG | Petrol |
| A6 Allroad Sport TDI Quattro Auto | 2015 | 43.5 MPG | N/A | 48.7 MPG | Diesel |
| A6 Allroad Sport TDI Quattro Semi-Auto | 2015 | 50.4 MPG | N/A | 54.3 MPG | Diesel |
| A6 Allroad TDI Quattro Auto | 2015 | 43.5 MPG | N/A | 48.7 MPG | Diesel |
| A6 Allroad TDI Quattro Semi-Auto | 2015 | 50.4 MPG | N/A | 54.3 MPG | Diesel |
| A6 Black Edition TDI Quattro Auto | 2015 | 47.9 MPG | N/A | 54.3 MPG | Diesel |
| A6 Black Edition TDI Quattro Semi-Auto | 2015 | 52.3 MPG | N/A | 56.5 MPG | Diesel |
| A6 Black Edition TDI Semi-Auto | 2015 | 57.7 MPG | N/A | 62.8 MPG | Diesel |
| A6 Black Edition TDI Ultra | 2015 | 60.1 MPG | N/A | 67.3 MPG | Diesel |
| A6 Black Edition TDI Ultra Semi-Auto | 2015 | 64.2 MPG | N/A | 68.9 MPG | Diesel |
| A6 S Line TDI CVT | 2015 | 55.4 MPG | N/A | 61.4 MPG | Diesel |
| A6 S Line TDI Quattro Auto | 2015 | 44.8 MPG | N/A | 51.4 MPG | Diesel |
| A6 S Line TDI Quattro Semi-Auto | 2015 | 53.3 MPG | N/A | 58.9 MPG | Diesel |
| A6 S Line TDI Semi-Auto | 2015 | 60.1 MPG | N/A | 65.7 MPG | Diesel |
| A6 S Line TDI Ultra | 2015 | 61.4 MPG | N/A | 70.6 MPG | Diesel |
| A6 S Line TDI Ultra Semi-Auto | 2015 | 61.4 MPG | N/A | 68.9 MPG | Diesel |
| A6 SE TDI Quattro Semi-Auto | 2015 | 55.4 MPG | N/A | 61.4 MPG | Diesel |
| A6 SE TDI Ultra | 2015 | 62.8 MPG | N/A | 70.6 MPG | Diesel |
| A6 SE TDI Ultra Semi-Auto | 2015 | 67.3 MPG | N/A | 72.4 MPG | Diesel |
| RS 6 TFSI V8 Quattro Auto | 2015 | 29.4 MPG | N/A | 38.2 MPG | Petrol |
| S6 V8t TFSI Quattro Auto | 2015 | 29.4 MPG | N/A | 37.7 MPG | Petrol |
| S6 V8t TFSI Quattro Semi-Auto | 2015 | 30.1 MPG | N/A | 39.8 MPG | Petrol |
| A6 Allroad TDI Quattro Auto | 2014 | 44.8 MPG | N/A | 50.4 MPG | Diesel |
| A6 Black Edition TDI | 2014 | 57.7 MPG | N/A | 64.2 MPG | Diesel |
| A6 Black Edition TDI CVT | 2014 | 55.4 MPG | N/A | 61.4 MPG | Diesel |
| A6 Black Edition TDI Quattro Auto | 2014 | 47.9 MPG | N/A | 54.3 MPG | Diesel |
| A6 Black Edition TDI Ultra | 2014 | 62.8 MPG | N/A | 70.6 MPG | Diesel |
| A6 Black Edition TDI Ultra Semi-Auto | 2014 | 64.2 MPG | N/A | 72.4 MPG | Diesel |
| A6 S Line TDI | 2014 | 56.5 MPG | N/A | 62.8 MPG | Diesel |
| A6 S Line TDI CVT | 2014 | 55.4 MPG | N/A | 62.8 MPG | Diesel |
| A6 S Line TDI Quattro Auto | 2014 | 47.9 MPG | N/A | 54.3 MPG | Diesel |
| A6 S Line TDI Ultra | 2014 | 62.8 MPG | N/A | 70.6 MPG | Diesel |
| A6 S Line TDI Ultra Semi-Auto | 2014 | 61.4 MPG | N/A | 68.9 MPG | Diesel |
| A6 SE TDI | 2014 | 53.3 MPG | N/A | 64.2 MPG | Diesel |
| A6 SE TDI CVT | 2014 | 55.4 MPG | N/A | 61.4 MPG | Diesel |
| A6 SE TDI Quattro Auto | 2014 | 44.8 MPG | N/A | 51.4 MPG | Diesel |
| A6 SE TDI Ultra | 2014 | 62.8 MPG | N/A | 70.6 MPG | Diesel |
| A6 SE TDI Ultra Semi-Auto | 2014 | 67.3 MPG | N/A | 72.4 MPG | Diesel |
| RS 6 TFSI V8 Quattro Auto | 2014 | 28.8 MPG | N/A | 37.7 MPG | Petrol |
| S6 V8t TFSI Quattro Auto | 2014 | 29.4 MPG | N/A | 37.7 MPG | Petrol |
| A6 Allroad TDI Quattro Auto | 2013 | 44.8 MPG | N/A | 50.4 MPG | Diesel |
| A6 Black Edition TDI | 2013 | 57.7 MPG | N/A | 64.2 MPG | Diesel |
| A6 Black Edition TDI CVT | 2013 | 56.5 MPG | N/A | 64.2 MPG | Diesel |
| A6 Black Edition TDI Quattro Auto | 2013 | 47.9 MPG | N/A | 54.3 MPG | Diesel |
| A6 S Line TDI | 2013 | 56.5 MPG | N/A | 62.8 MPG | Diesel |
| A6 S Line TDI CVT | 2013 | 56.5 MPG | N/A | 64.2 MPG | Diesel |
| A6 S Line TDI Quattro Auto | 2013 | 44.1 MPG | N/A | 50.4 MPG | Diesel |
| A6 SE TDI | 2013 | 57.7 MPG | N/A | 64.2 MPG | Diesel |
| A6 SE TDI CVT | 2013 | 56.5 MPG | N/A | 64.2 MPG | Diesel |
| A6 SE TDI Quattro Auto | 2013 | 47.9 MPG | N/A | 54.3 MPG | Diesel |
| RS 6 TFSI V8 Quattro Auto | 2013 | 28.8 MPG | N/A | 37.7 MPG | Petrol |
| S6 V8t TFSI Quattro Auto | 2013 | 29.1 MPG | N/A | 37.7 MPG | Petrol |
| A6 Allroad TDI Quattro Auto | 2012 | 37.7 MPG | N/A | 45.6 MPG | Diesel |
| A6 S Line TDI | 2012 | 57.7 MPG | N/A | 64.2 MPG | Diesel |
| A6 S Line TDI CVT | 2012 | 54.3 MPG | N/A | 60.1 MPG | Diesel |
| A6 S Line TDI Quattro Auto | 2012 | 44.1 MPG | N/A | 50.4 MPG | Diesel |
| A6 S Line TFSI Quattro Auto | 2012 | 34.5 MPG | N/A | 42.8 MPG | Petrol |
| A6 SE TDI | 2012 | 57.7 MPG | N/A | 64.2 MPG | Diesel |
| A6 SE TDI CVT | 2012 | 56.5 MPG | N/A | 64.2 MPG | Diesel |
| A6 SE TDI Quattro Auto | 2012 | 47.1 MPG | N/A | 53.3 MPG | Diesel |
| S6 V8t TFSI Quattro Auto | 2012 | 29.1 MPG | N/A | 37.7 MPG | Petrol |
| A6 Allroad TDI Quattro | 2011 | 39.2 MPG | N/A | 47.9 MPG | Diesel |
| A6 Allroad TDI Quattro Auto | 2011 | 37.7 MPG | N/A | 45.6 MPG | Diesel |
| A6 E S Line TDI | 2011 | 53.3 MPG | N/A | 65.7 MPG | Diesel |
| A6 E S Line TDI CVT | 2011 | 48.7 MPG | N/A | 57.7 MPG | Diesel |
| A6 E SE TDI | 2011 | 53.3 MPG | N/A | 65.7 MPG | Diesel |
| A6 E TDI | 2011 | 53.3 MPG | N/A | 65.7 MPG | Diesel |
| A6 S Line Special Edition TDI | 2011 | 48.7 MPG | N/A | 58.9 MPG | Diesel |
| A6 S Line Special Edition TDI CVT | 2011 | 47.9 MPG | N/A | 56.5 MPG | Diesel |
| A6 S Line Special Edition TDI Quattro | 2011 | 39.8 MPG | N/A | 48.7 MPG | Diesel |
| A6 S Line Special Edition TDI Quattro Auto | 2011 | 39.8 MPG | N/A | 48.7 MPG | Diesel |
| A6 S Line Special Edition TFSI CVT | 2011 | 36.2 MPG | N/A | 45.6 MPG | Petrol |
| A6 S Line TDI | 2011 | 56.5 MPG | N/A | 62.8 MPG | Diesel |
| A6 S Line TDI CVT | 2011 | 56.5 MPG | N/A | 64.2 MPG | Diesel |
| A6 S Line TDI Quattro Auto | 2011 | 47.1 MPG | N/A | 53.3 MPG | Diesel |
| A6 S Line TFSI Quattro Auto | 2011 | 34.5 MPG | N/A | 42.8 MPG | Petrol |
| A6 SE E TDI CVT | 2011 | 48.7 MPG | N/A | 57.7 MPG | Diesel |
| A6 SE TDI | 2011 | 57.7 MPG | N/A | 64.2 MPG | Diesel |
| A6 SE TDI CVT | 2011 | 54.3 MPG | N/A | 60.1 MPG | Diesel |
| A6 SE TDI Quattro Auto | 2011 | 47.1 MPG | N/A | 53.3 MPG | Diesel |
| A6 Allroad TDI Quattro | 2010 | 39.2 MPG | N/A | 47.9 MPG | Diesel |
| A6 Allroad TDI Quattro Auto | 2010 | 37.7 MPG | N/A | 45.6 MPG | Diesel |
| A6 E S Line TDI | 2010 | 53.3 MPG | N/A | 65.7 MPG | Diesel |
| A6 E SE TDI | 2010 | 53.3 MPG | N/A | 65.7 MPG | Diesel |
| A6 E TDI | 2010 | 53.3 MPG | N/A | 65.7 MPG | Diesel |
| A6 Le Mans FSI Quattro Auto | 2010 | 31.4 MPG | N/A | 40.9 MPG | Petrol |
| A6 Le Mans TDI | 2010 | 49.6 MPG | N/A | 60.1 MPG | Diesel |
| A6 Le Mans TDI CVT | 2010 | 48.7 MPG | N/A | 56.5 MPG | Diesel |
| A6 Le Mans TDI Quattro Auto | 2010 | 39.8 MPG | N/A | 48.7 MPG | Diesel |
| A6 Le Mans TFSI Quattro Auto | 2010 | 22.4 MPG | N/A | 31 MPG | Petrol |
| A6 S Line Special Edition TDI | 2010 | 49.6 MPG | N/A | 60.1 MPG | Diesel |
| A6 S Line Special Edition TDI CVT | 2010 | 47.9 MPG | N/A | 56.5 MPG | Diesel |
| A6 S Line Special Edition TFSI | 2010 | 37.7 MPG | N/A | 47.9 MPG | Petrol |
| A6 S Line TDI CVT | 2010 | 47.9 MPG | N/A | 56.5 MPG | Diesel |
| A6 SE E TDI CVT | 2010 | 48.7 MPG | N/A | 57.7 MPG | Diesel |
| A6 SE Quattro TDI | 2010 | 39.8 MPG | N/A | 48.7 MPG | Diesel |
| A6 SE TDI | 2010 | 48.7 MPG | N/A | 58.9 MPG | Diesel |
| A6 SE TDI CVT | 2010 | 48.7 MPG | N/A | 56.5 MPG | Diesel |
| A6 SE TDI Quattro Auto | 2010 | 39.8 MPG | N/A | 48.7 MPG | Diesel |
| A6 SE TFSI | 2010 | 37.7 MPG | N/A | 47.9 MPG | Petrol |
| A6 SE TFSI Quattro Auto | 2010 | 30.1 MPG | N/A | 39.8 MPG | Petrol |
| A6 TDI CVT | 2010 | 48.7 MPG | N/A | 56.5 MPG | Diesel |
| RS 6 Quattro Auto | 2010 | 20.3 MPG | N/A | 27.7 MPG | Petrol |
| S6 Quattro Auto | 2010 | 22.4 MPG | N/A | 29.7 MPG | Petrol |
| A6 Allroad TDI Quattro | 2009 | 39.2 MPG | N/A | 47.9 MPG | Diesel |
| A6 Allroad TDI Quattro Auto | 2009 | 37.7 MPG | N/A | 45.6 MPG | Diesel |
| A6 E S Line TDI | 2009 | 53.3 MPG | N/A | 65.7 MPG | Diesel |
| A6 E S Line TDI CVT | 2009 | 53.3 MPG | N/A | 65.7 MPG | Diesel |
| A6 E SE TDI | 2009 | 53.3 MPG | N/A | 65.7 MPG | Diesel |
| A6 E TDI | 2009 | 53.3 MPG | N/A | 65.7 MPG | Diesel |
| A6 E TDI CVT | 2009 | 48.7 MPG | N/A | 57.7 MPG | Diesel |
| A6 Le Mans FSI Quattro Auto | 2009 | 31.4 MPG | N/A | 40.9 MPG | Petrol |
| A6 Le Mans TDI | 2009 | 49.6 MPG | N/A | 60.1 MPG | Diesel |
| A6 Le Mans TDI CVT | 2009 | 47.9 MPG | N/A | 56.5 MPG | Diesel |
| A6 Le Mans TDI Quattro Auto | 2009 | 39.8 MPG | N/A | 48.7 MPG | Diesel |
| A6 S Line Le Mans Quattro Auto | 2009 | 33.2 MPG | N/A | 43.5 MPG | Diesel |
| A6 S Line TDI | 2009 | 49.6 MPG | N/A | 60.1 MPG | Diesel |
| A6 S Line TDI CVT | 2009 | 48.7 MPG | N/A | 56.5 MPG | Diesel |
| A6 S Line TFSI Quattro Auto | 2009 | 22.4 MPG | N/A | 31 MPG | Petrol |
| A6 SE E TDI CVT | 2009 | 48.7 MPG | N/A | 57.7 MPG | Diesel |
| A6 SE TDI | 2009 | 48.7 MPG | N/A | 58.9 MPG | Diesel |
| A6 SE TDI CVT | 2009 | 44.1 MPG | N/A | 51.4 MPG | Diesel |
| A6 SE TDI Quattro Auto | 2009 | 39.8 MPG | N/A | 48.7 MPG | Diesel |
| A6 SE TFSI 168 | 2009 | 37.7 MPG | N/A | 47.9 MPG | Petrol |
| A6 SE TFSI CVT | 2009 | 36.2 MPG | N/A | 45.6 MPG | Petrol |
| A6 TDI Le | 2009 | 45.6 MPG | N/A | 58.9 MPG | Diesel |
| Allroad TDI Quattro Auto | 2009 | 32.5 MPG | N/A | 40.4 MPG | Diesel |
| Allroad TDI Quattro TDV Auto | 2009 | 32.1 MPG | N/A | 40.4 MPG | Diesel |
| RS 6 Quattro Auto | 2009 | 20.2 MPG | N/A | 27.4 MPG | Petrol |
| S6 Quattro Auto | 2009 | 22.4 MPG | N/A | 29.7 MPG | Petrol |
| A6 Allroad TDI Quattro Auto | 2008 | 37.7 MPG | N/A | 45.6 MPG | Diesel |
| A6 Le Mans TDI Auto | 2008 | 33.6 MPG | N/A | 42.8 MPG | Diesel |
| A6 Le Mans TDI CVT | 2008 | 39.2 MPG | N/A | 49.6 MPG | Diesel |
| A6 S Line CVT | 2008 | 29.1 MPG | N/A | 38.7 MPG | Petrol |
| A6 S Line FSI Auto | 2008 | 32.1 MPG | N/A | 44.1 MPG | Petrol |
| A6 S Line Le Mans Quattro Auto | 2008 | 33.2 MPG | N/A | 43.5 MPG | Diesel |
| A6 S Line TDI | 2008 | 39.8 MPG | N/A | 47.1 MPG | Diesel |
| A6 S Line TDI Auto | 2008 | 39.8 MPG | N/A | 51.4 MPG | Diesel |
| A6 S Line TDI CVT | 2008 | 44.1 MPG | N/A | 51.4 MPG | Diesel |
| A6 S Line TFSI | 2008 | 34.5 MPG | N/A | 43.5 MPG | Petrol |
| A6 S Line TFSI CVT | 2008 | 34.5 MPG | N/A | 41.5 MPG | Petrol |
| A6 SE CVT | 2008 | 29.1 MPG | N/A | 38.7 MPG | Petrol |
| A6 SE E TDI CVT | 2008 | 48.7 MPG | N/A | 57.7 MPG | Diesel |
| A6 SE TDI | 2008 | 44.1 MPG | N/A | 56.5 MPG | Diesel |
| A6 SE TDI Auto | 2008 | 37.7 MPG | N/A | 48.7 MPG | Diesel |
| A6 SE TDI CVT | 2008 | 53.3 MPG | N/A | 65.7 MPG | Diesel |
| A6 SE TDI Quattro Auto | 2008 | 33.2 MPG | N/A | 43.5 MPG | Diesel |
| A6 SE TFSI | 2008 | 34.5 MPG | N/A | 43.5 MPG | Petrol |
| A6 SE TFSI CVT | 2008 | 34.5 MPG | N/A | 41.5 MPG | Petrol |
| A6 TDI Auto | 2008 | 42.2 MPG | N/A | 51.4 MPG | Diesel |
| A6 TDI Le | 2008 | 46.3 MPG | N/A | 60.1 MPG | Diesel |
| A6 TDI SE | 2008 | 39.8 MPG | N/A | 51.4 MPG | Diesel |
| Allroad TDI Quattro Auto | 2008 | 32.5 MPG | N/A | 40.4 MPG | Diesel |
| Allroad TDI Quattro TDV Auto | 2008 | 32.1 MPG | N/A | 40.4 MPG | Diesel |
| RS 6 | 2008 | 20.2 MPG | N/A | 27.4 MPG | Petrol |
| RS 6 Quattro Auto | 2008 | 20.2 MPG | N/A | 27.4 MPG | Petrol |
| S6 V10 Auto | 2008 | 21.1 MPG | N/A | 29.1 MPG | Petrol |
| A6 Le Mans TDI | 2007 | 40.9 MPG | N/A | 53.3 MPG | Diesel |
| A6 Le Mans TDI Auto | 2007 | 34 MPG | N/A | 43.5 MPG | Diesel |
| A6 Le Mans TDI CVT | 2007 | 38.2 MPG | N/A | 48.7 MPG | Diesel |
| A6 S Line FSI Auto | 2007 | 32.1 MPG | N/A | 44.1 MPG | Petrol |
| A6 S Line FSI CVT | 2007 | 28.8 MPG | N/A | 38.7 MPG | Petrol |
| A6 S Line FSI Quattro | 2007 | 25.5 MPG | N/A | 35.3 MPG | Petrol |
| A6 S Line Le Mans Quattro | 2007 | 34.9 MPG | N/A | 45.6 MPG | Diesel |
| A6 S Line Le Mans Quattro Auto | 2007 | 33.2 MPG | N/A | 43.5 MPG | Diesel |
| A6 S Line TDI | 2007 | 39.8 MPG | N/A | 47.1 MPG | Diesel |
| A6 S Line TDI Auto | 2007 | 39.8 MPG | N/A | 51.4 MPG | Diesel |
| A6 S Line TDI Quattro Auto | 2007 | 33.2 MPG | N/A | 43.5 MPG | Diesel |
| A6 S Line TFSI CVT | 2007 | 34 MPG | N/A | 42.8 MPG | Petrol |
| A6 SE CVT | 2007 | 28.8 MPG | N/A | 38.2 MPG | Petrol |
| A6 SE TDI | 2007 | 44.1 MPG | N/A | 56.5 MPG | Diesel |
| A6 SE TDI Auto | 2007 | 39.8 MPG | N/A | 51.4 MPG | Diesel |
| A6 SE TDI Quattro Auto | 2007 | 33.6 MPG | N/A | 41.5 MPG | Diesel |
| A6 SE TFSI | 2007 | 34.5 MPG | N/A | 43.5 MPG | Petrol |
| A6 SE TFSI CVT | 2007 | 34 MPG | N/A | 42.8 MPG | Petrol |
| A6 SE V8 Quattro Auto | 2007 | 25.9 MPG | N/A | 34.4 MPG | Petrol |
| A6 TDI S Line | 2007 | 39.8 MPG | N/A | 51.4 MPG | Diesel |
| A6 TDI SE | 2007 | 39.8 MPG | N/A | 51.4 MPG | Diesel |
| Allroad TDI Quattro Auto | 2007 | 32.5 MPG | N/A | 40.4 MPG | Diesel |
| Allroad TDI Quattro TDV Auto | 2007 | 32.1 MPG | N/A | 40.4 MPG | Diesel |
| S6 V10 Auto | 2007 | 21.1 MPG | N/A | 29.1 MPG | Petrol |
| A6 S Line Le Mans Quattro | 2006 | 34.9 MPG | N/A | 45.6 MPG | Diesel |
| A6 S Line TDI | 2006 | 44.1 MPG | N/A | 56.5 MPG | Diesel |
| A6 S Line TDI Auto | 2006 | 39.8 MPG | N/A | 51.4 MPG | Diesel |
| A6 S Line TDI Quattro Auto | 2006 | 33.6 MPG | N/A | 41.5 MPG | Diesel |
| A6 SE CVT | 2006 | 29.1 MPG | N/A | 38.7 MPG | Petrol |
| A6 SE FSI | 2006 | 28.3 MPG | N/A | 38.7 MPG | Petrol |
| A6 SE TDI | 2006 | 40.4 MPG | N/A | 47.9 MPG | Diesel |
| A6 SE TDI Auto | 2006 | 39.8 MPG | N/A | 51.4 MPG | Diesel |
| A6 SE TDI Quattro Auto | 2006 | 33.6 MPG | N/A | 41.5 MPG | Diesel |
| A6 SE TFSI | 2006 | 34.5 MPG | N/A | 43.5 MPG | Petrol |
| A6 TDI S Line | 2006 | 39.8 MPG | N/A | 51.4 MPG | Diesel |
| A6 TDI S Line Quattro | 2006 | 34.9 MPG | N/A | 45.6 MPG | Diesel |
| A6 TDI SE | 2006 | 39.8 MPG | N/A | 51.4 MPG | Diesel |
| A6 TDI SE CVT | 2006 | 33.2 MPG | N/A | 43.5 MPG | Diesel |
| A6 TDI SE Quattro | 2006 | 34.9 MPG | N/A | 45.6 MPG | Diesel |
| Allroad TDI Quattro Auto | 2006 | 32.5 MPG | N/A | 40.4 MPG | Diesel |
| Allroad TDI Quattro TDV Auto | 2006 | 32.1 MPG | N/A | 40.4 MPG | Diesel |
| S6 V10 Auto | 2006 | 21.1 MPG | N/A | 29.1 MPG | Petrol |
| A6 Final Edition TDI | 2005 | 48.7 MPG | N/A | 60.1 MPG | Diesel |
| A6 Final Edition TDI CVT | 2005 | 47.1 MPG | N/A | 55.4 MPG | Diesel |
| A6 S Line TDI Quattro Auto | 2005 | 33.2 MPG | N/A | 43.5 MPG | Diesel |
| A6 SE CVT | 2005 | 29.1 MPG | N/A | 38.7 MPG | Petrol |
| A6 SE FSI Quattro Auto | 2005 | 25.9 MPG | N/A | 34.5 MPG | Petrol |
| A6 SE TDI | 2005 | 44.1 MPG | N/A | 56.5 MPG | Diesel |
| A6 SE TDI Quattro Auto | 2005 | 33.6 MPG | N/A | 41.5 MPG | Diesel |
| A6 Se | 2005 | 28.3 MPG | N/A | 38.7 MPG | Petrol |
| A6 TDI S Line | 2005 | 44.8 MPG | N/A | 55.4 MPG | Diesel |
| A6 TDI SE | 2005 | 47.1 MPG | N/A | 57.7 MPG | Diesel |
| A6 TDI SE CVT | 2005 | 33.2 MPG | N/A | 43.5 MPG | Diesel |
| A6 TDI SE Quattro | 2005 | 34.9 MPG | N/A | 45.6 MPG | Diesel |
| RS6 Quattro Auto | 2005 | 19.3 MPG | N/A | 27.1 MPG | Petrol |
| A6 1.9 TDI SE | 2004 | 47.9 MPG | N/A | 56.5 MPG | Diesel |
| A6 1.9 TDI Sport | 2004 | 46.3 MPG | N/A | 56.5 MPG | Diesel |
| A6 2.0 SE CVT | 2004 | 33.2 MPG | N/A | 41.5 MPG | Petrol |
| A6 2.5 TDI SE CVT | 2004 | 39.8 MPG | N/A | 48.7 MPG | Diesel |
| A6 S LINE TDI Quattro A | 2004 | 33.2 MPG | N/A | 43.5 MPG | Diesel |
| A6 SE CVT | 2004 | 29.1 MPG | N/A | 38.7 MPG | Petrol |
| A6 SE TDI Quattro Auto | 2004 | 33.2 MPG | N/A | 43.5 MPG | Diesel |
| A6 TDI SE | 2004 | 47.1 MPG | N/A | 57.7 MPG | Diesel |
| RS6 Quattro Auto | 2004 | 19.3 MPG | N/A | 27.1 MPG | Petrol |
| A6 1.9 TDI SE | 2003 | 45.6 MPG | N/A | 54.3 MPG | Diesel |
| A6 2.0 Sport CVT | 2003 | 33.2 MPG | N/A | 41.5 MPG | Petrol |
| A6 2.4 Sport CVT | 2003 | 29.1 MPG | N/A | 39.8 MPG | Petrol |
| A6 2.7T Quattro SE | 2003 | 23.9 MPG | N/A | 31.4 MPG | Petrol |
| A6 3.0 Quattro Sport Auto | 2003 | 24.8 MPG | N/A | 33.6 MPG | Petrol |
| RS6 Quattro Auto | 2003 | 19.3 MPG | N/A | 27.1 MPG | Petrol |
| S6 Auto | 2003 | 19.5 MPG | N/A | 27.4 MPG | Petrol |
| A6 1.9 TDI SE | 2002 | 45.6 MPG | N/A | 54.3 MPG | Diesel |
| A6 2.0 SE | 2002 | 33.2 MPG | N/A | 42.8 MPG | Petrol |
| A6 2.4 Quattro Sport | 2002 | 25.7 MPG | N/A | 33.6 MPG | Petrol |
| A6 2.5 TDI Quattro SE | 2002 | 34.9 MPG | N/A | 44.1 MPG | Diesel |
| A6 2.5 TDI SE CVT | 2002 | 39.8 MPG | N/A | 48.7 MPG | Diesel |
| A6 2.5 TDI Sport CVT | 2002 | 39.8 MPG | N/A | 48.7 MPG | Diesel |
| A6 4.2 Quattro Sport Auto | 2002 | 21.4 MPG | N/A | 29.1 MPG | Petrol |
| A6 T SE CVT | 2002 | 32.5 MPG | N/A | 40.9 MPG | Petrol |
| RS6 Quattro Auto | 2002 | 19.3 MPG | N/A | 27.2 MPG | Petrol |
| S6 Auto | 2002 | 19.5 MPG | N/A | 27.4 MPG | Petrol |
| A6 1.9 TDI SE | 2001 | 50.4 MPG | N/A | 61.4 MPG | Diesel |
| A6 2.4 SE Auto | 2001 | 25.9 MPG | N/A | 36.2 MPG | Petrol |
| A6 2.5 TDI SE | 2001 | 40.9 MPG | N/A | 53.3 MPG | Diesel |
| A6 2.7T Quattro | 2001 | 23.9 MPG | N/A | 31 MPG | Petrol |
| A6 T SE CVT | 2001 | 32.5 MPG | N/A | 40.9 MPG | Petrol |
| A6 1.8 T SE | 2000 | 34 MPG | N/A | 42.2 MPG | Petrol |
| A6 1.9 TDI | 2000 | 48.7 MPG | N/A | 60.1 MPG | Diesel |
| A6 2.7T Quattro | 2000 | 23.9 MPG | N/A | 31 MPG | Petrol |
| A6 4.2 Quattro Auto | 2000 | 21.4 MPG | N/A | 29.1 MPG | Petrol |
| A6 T Quattro | 2000 | 30.1 MPG | N/A | 38.2 MPG | Petrol |
| A6 T SE CVT | 2000 | 33.2 MPG | N/A | 42.2 MPG | Petrol |
| S6 Quattro Auto | 2000 | 19.6 MPG | N/A | 27.7 MPG | Petrol |
| S6 Auto | 1997 | N/A | N/A | N/A | Petrol |
| S6 | 1996 | N/A | N/A | N/A | Petrol |
Also check AUDI A6: