Porsche 911 Carrera GTS Cabriolet: MPG and fuel economy by year
The EPA has rated the Porsche 911 Carrera GTS Cabriolet across 10 model years, from the 2015 Porsche 911 Carrera GTS Cabriolet through the 2026 Porsche 911 Carrera GTS Cabriolet. The most recent 2026 Porsche 911 Carrera GTS Cabriolet returns 19 combined MPG. The most efficient model year was the 2019 Porsche 911 Carrera GTS Cabriolet at 22 MPG.
Pick a year below to open the full Porsche 911 Carrera GTS Cabriolet 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 911 Carrera GTS Cabriolet. 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 Porsche 911 Carrera GTS Cabriolet | 19 MPG | 17 MPG | 23 MPG | $3,650 |
| 2025 | 2025 Porsche 911 Carrera GTS Cabriolet | 19 MPG | 17 MPG | 23 MPG | $3,650 |
| 2024 | 2024 Porsche 911 Carrera GTS Cabriolet | 20 MPG | 17 MPG | 24 MPG | $3,450 |
| 2023 | 2023 Porsche 911 Carrera GTS Cabriolet | 20 MPG | 17 MPG | 24 MPG | $3,450 |
| 2022 | 2022 Porsche 911 Carrera GTS Cabriolet | 20 MPG | 17 MPG | 24 MPG | $3,450 |
| 2019 | 2019 Porsche 911 Carrera GTS Cabriolet | 22 MPG | 20 MPG | 26 MPG | $3,150 |
| 2018 | 2018 Porsche 911 Carrera GTS Cabriolet | 22 MPG | 20 MPG | 26 MPG | $3,150 |
| 2017 | 2017 Porsche 911 Carrera GTS Cabriolet | 22 MPG | 20 MPG | 26 MPG | $3,150 |
| 2016 | 2016 Porsche 911 Carrera GTS Cabriolet | 21 MPG | 19 MPG | 25 MPG | $3,300 |
| 2015 | 2015 Porsche 911 Carrera GTS Cabriolet | 21 MPG | 19 MPG | 25 MPG | $3,300 |
How the Porsche 911 Carrera GTS Cabriolet compares against the Minicompact Cars class
Buyers usually compare the Porsche 911 Carrera GTS Cabriolet against other cars in the same EPA class. The list below shows the most efficient cars in the Minicompact 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.