2021–2022 Porsche 718 fuel economy
The 2021–2022 Porsche 718 is rated at 19–24 MPG combined by the EPA, from 19 MPG (4.0 L 6-cyl, Manual 6-spd, Rear-Wheel Drive) to 24 MPG (2.0 L 4-cyl turbo, Automatic (AM-S7), Rear-Wheel Drive). The ratings are identical for every model year from 2021 to 2022, so they are shown together. EPA size class: Two Seaters.
MPG by version
| Version | City | Hwy | Comb. | L/100 km | UK MPG | Fuel cost/yr* |
|---|---|---|---|---|---|---|
| 718 Boxster 2.0 L 4-cyl turbo, Automatic (AM-S7), Rear-Wheel Drive · Premium Gasoline | 21 | 27 | 24 | 9.8 | 29 | $3,400 |
| 718 Cayman 2.0 L 4-cyl turbo, Automatic (AM-S7), Rear-Wheel Drive · Premium Gasoline | 21 | 27 | 24 | 9.8 | 29 | $3,400 |
| 718 Boxster T 2.0 L 4-cyl turbo, Automatic (AM-S7), Rear-Wheel Drive · Premium Gasoline | 21 | 27 | 23 | 10.2 | 28 | $3,550 |
| 718 Cayman T 2.0 L 4-cyl turbo, Automatic (AM-S7), Rear-Wheel Drive · Premium Gasoline | 21 | 27 | 23 | 10.2 | 28 | $3,550 |
| 718 Boxster 2.0 L 4-cyl turbo, Manual 6-spd, Rear-Wheel Drive · Premium Gasoline | 20 | 26 | 22 | 10.7 | 26 | $3,750 |
| 718 Boxster S 2.5 L 4-cyl turbo, Automatic (AM-S7), Rear-Wheel Drive · Premium Gasoline | 19 | 25 | 22 | 10.7 | 26 | $3,750 |
| 718 Boxster T 2.0 L 4-cyl turbo, Manual 6-spd, Rear-Wheel Drive · Premium Gasoline | 20 | 26 | 22 | 10.7 | 26 | $3,750 |
| 718 Cayman 2.0 L 4-cyl turbo, Manual 6-spd, Rear-Wheel Drive · Premium Gasoline | 20 | 26 | 22 | 10.7 | 26 | $3,750 |
| 718 Cayman S 2.5 L 4-cyl turbo, Automatic (AM-S7), Rear-Wheel Drive · Premium Gasoline | 19 | 25 | 22 | 10.7 | 26 | $3,750 |
| 718 Cayman T 2.0 L 4-cyl turbo, Manual 6-spd, Rear-Wheel Drive · Premium Gasoline | 20 | 26 | 22 | 10.7 | 26 | $3,750 |
| 718 Boxster GTS 4.0 L 6-cyl, Automatic (AM-S7), Rear-Wheel Drive · Premium Gasoline | 19 | 24 | 21 | 11.2 | 25 | $3,900 |
| 718 Boxster S 2.5 L 4-cyl turbo, Manual 6-spd, Rear-Wheel Drive · Premium Gasoline | 19 | 24 | 21 | 11.2 | 25 | $3,900 |
| 718 Cayman GTS 4.0 L 6-cyl, Automatic (AM-S7), Rear-Wheel Drive · Premium Gasoline | 19 | 24 | 21 | 11.2 | 25 | $3,900 |
| 718 Cayman S 2.5 L 4-cyl turbo, Manual 6-spd, Rear-Wheel Drive · Premium Gasoline | 19 | 24 | 21 | 11.2 | 25 | $3,900 |
| 718 Cayman GT4 4.0 L 6-cyl, Automatic (AM-S7), Rear-Wheel Drive · Premium Gasoline | 18 | 24 | 20 | 11.8 | 24 | $4,100 |
| 718 Spyder 4.0 L 6-cyl, Automatic (AM-S7), Rear-Wheel Drive · Premium Gasoline | 18 | 24 | 20 | 11.8 | 24 | $4,100 |
| 718 Boxster GTS 4.0 L 6-cyl, Manual 6-spd, Rear-Wheel Drive · Premium Gasoline | 17 | 24 | 19 | 12.4 | 23 | $4,350 |
| 718 Cayman GT4 4.0 L 6-cyl, Manual 6-spd, Rear-Wheel Drive · Premium Gasoline | 17 | 23 | 19 | 12.4 | 23 | $4,350 |
| 718 Cayman GTS 4.0 L 6-cyl, Manual 6-spd, Rear-Wheel Drive · Premium Gasoline | 17 | 24 | 19 | 12.4 | 23 | $4,350 |
| 718 Spyder 4.0 L 6-cyl, Manual 6-spd, Rear-Wheel Drive · Premium Gasoline | 17 | 23 | 19 | 12.4 | 23 | $4,350 |
* EPA estimate of yearly fuel (or electricity) cost for 15,000 miles with 55 % city driving, at the fuel prices EPA used for this model year. Use the fuel cost comparison with your own mileage and prices.
About these numbers
EPA ratings come from standard laboratory tests adjusted to reflect real-world driving, so they are best for comparing vehicles. Your own figure will vary with speed, temperature, load, tires and driving style — measure it with the MPG calculator. If you have fitted larger tires, correct the reading with the tire size and fuel economy calculator.
Source: U.S. Environmental Protection Agency and U.S. Department of Energy, fueleconomy.gov. Original data (downloaded 2026-09-29). Data processed by us; errors in processing are ours, not the publisher's.