Audi A8 quattro: MPG and fuel economy by year
The EPA has rated the Audi A8 quattro across 7 model years, from the 1999 Audi A8 quattro through the 2026 Audi A8 quattro. The most recent 2026 Audi A8 quattro returns 22 combined MPG. The nameplate has been in continuous production long enough to span multiple generations of EPA testing methodology.
Pick a year below to open the full Audi A8 quattro page for that model year. Each year page covers combined, city, and highway MPG, the trim variants the EPA rates separately, the annual fuel cost across three driving patterns, and a year-over-year comparison so you can see whether the car has improved.
Fuel economy by model year
Combined MPG, city MPG, highway MPG, and the EPA's estimated annual fuel cost for every model year of the Audi A8 quattro. Click any year to see the full breakdown for that model year, including trim variants, the drivetrain, and a comparison against other vehicles in its segment.
| Year | Model | Combined MPG | City | Highway | Annual fuel cost |
|---|---|---|---|---|---|
| 2026 | 2026 Audi A8 quattro | 22 MPG | 19 MPG | 27 MPG | $3,150 |
| 2025 | 2025 Audi A8 quattro | 22 MPG | 20 MPG | 26 MPG | $3,150 |
| 2024 | 2024 Audi A8 quattro | 22 MPG | 19 MPG | 28 MPG | $3,150 |
| 2002 | 2002 Audi A8 quattro | 18 MPG | 15 MPG | 23 MPG | $3,850 |
| 2001 | 2001 Audi A8 quattro | 18 MPG | 15 MPG | 23 MPG | $3,850 |
| 2000 | 2000 Audi A8 quattro | 18 MPG | 15 MPG | 22 MPG | $3,850 |
| 1999 | 1999 Audi A8 quattro | 18 MPG | 15 MPG | 23 MPG | $3,850 |
How the Audi A8 quattro compares against the Large Cars class
Buyers usually compare the Audi A8 quattro against other cars in the same EPA class. The list below shows the most efficient cars in the Large Cars class for the 2026 model year, the latest year on this page. Each link opens the full page for that car.
Source: U.S. EPA fuel economy dataset. Annual fuel cost assumes 15,000 miles of driving per year and a 55% city, 45% highway split.