Porsche 718 Boxster S: MPG and fuel economy by year
The EPA has rated the Porsche 718 Boxster S across 5 model years, from the 2021 Porsche 718 Boxster S through the 2025 Porsche 718 Boxster S. The most recent 2025 Porsche 718 Boxster S returns 22 combined MPG.
Pick a year below to open the full Porsche 718 Boxster S 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 Porsche 718 Boxster S. 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 |
|---|---|---|---|---|---|
| 2025 | 2025 Porsche 718 Boxster S | 22 MPG | 19 MPG | 25 MPG | $3,150 |
| 2024 | 2024 Porsche 718 Boxster S | 22 MPG | 19 MPG | 25 MPG | $3,150 |
| 2023 | 2023 Porsche 718 Boxster S | 22 MPG | 19 MPG | 25 MPG | $3,150 |
| 2022 | 2022 Porsche 718 Boxster S | 22 MPG | 19 MPG | 25 MPG | $3,150 |
| 2021 | 2021 Porsche 718 Boxster S | 22 MPG | 19 MPG | 25 MPG | $3,150 |
How the Porsche 718 Boxster S compares against the Two Seaters class
Buyers usually compare the Porsche 718 Boxster S against other cars in the same EPA class. The list below shows the most efficient cars in the Two Seaters class for the 2025 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.