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2021 Porsche 718
Shown: 2021 Porsche 718. Photo: Oleg Yunakov, CC BY-SA 4.0, via Wikimedia Commons
  • Newest year: 2025
  • Gas
  • Two-seaters
  • Same as 2024

2021-2025 Porsche 718 MPG & Fuel Cost

5 model years · 16–24 MPG combined

24 MPG
Combined
21 MPG
City
27 MPG
Highway
Annual fuel cost · Boxster 2.0L 4-cyl turbo RWD
$3,400

15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)

Cheaper to fuel than 8 of 10 two-seater configurations, MY2025. Ranked against all rated configurations, not sales-weighted.

Previous generation: 2020

2021-2025 Porsche 718 at a glance

The 2021-2025 Porsche 718 covers 5 model years in the EPA database (89 configurations in all), rated 16–24 MPG combined. The newest model year, 2025, costs about $3,400 a year to fuel for its most efficient version, the Boxster 2.0L 4-cyl turbo RWD (24 MPG), at premium gasoline $5.36/gal (U.S. average, Sep 2026). EPA changed the ratings in 2022, 2023 and 2024; 2025 repeat the values of the year before.

2021-2025 Porsche 718 by model year

2021-2025 Porsche 718: EPA combined rating and yearly fuel cost for each model year
Model yearPowertrainsCombined$/yrEPA ratings
2025 Gas 16–24 MPG $3,400–$5,000 Same EPA ratings as 2024
2024 Gas 16–24 MPG $3,400–$5,000 Ratings changed
2023 Gas 16–24 MPG $3,400–$4,930 Ratings changed
2022 Gas 19–24 MPG $3,400–$4,180 Ratings changed
2021 Gas 19–24 MPG $3,400–$4,210 First year

What the 2025 Boxster 2.0L 4-cyl turbo RWD costs to drive

Per month

$283

$3,400 a year ÷ 12

Per 25 miles

$5.67

Per 100 miles

$22.67

Five years

$17,000

5 × the yearly cost, prices held at today's level

vs the two-seater median

$540less a year

Class median $3,940 a year, MY2025

Based on 15,000 miles a year and premium gasoline $5.36/gal (U.S. average, Sep 2026).

2025 Porsche 718 MPG

EPA lists the same ratings for the 2025 Porsche 718 as for the 2024 model, so the configurations and costs are the ones in the 2024 section above.See 2024

Gas · 2.0L, 2.5L, 4.0L
Combined
16–24 MPG
Per year
$3,400–$5,000

Gas configurations (14)

2025 Porsche 718 gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
Boxster 2.0L 4-cyl turbo RWD Automatic (AM-S7) (Most efficient) 2.0L 4-cyl turbo RWD 21 27 24 $3,400
Cayman 2.0L 4-cyl turbo RWD Automatic (AM-S7) 2.0L 4-cyl turbo RWD 21 27 24 $3,400
Boxster 2.0L 4-cyl turbo RWD Manual 6-spd 2.0L 4-cyl turbo RWD 20 25 22 $3,710
Cayman 2.0L 4-cyl turbo RWD Manual 6-spd 2.0L 4-cyl turbo RWD 20 25 22 $3,710
Boxster S 2.5L 4-cyl turbo RWD Automatic (AM-S7) 2.5L 4-cyl turbo RWD 19 25 22 $3,720
Cayman S 2.5L 4-cyl turbo RWD Automatic (AM-S7) 2.5L 4-cyl turbo RWD 19 25 22 $3,720
Boxster GTS 4.0L 6-cyl RWD Automatic (AM-S7) 4.0L 6-cyl RWD 19 24 21 $3,810
Cayman GTS 4.0L 6-cyl RWD Automatic (AM-S7) 4.0L 6-cyl RWD 19 24 21 $3,810
Boxster S 2.5L 4-cyl turbo RWD Manual 6-spd 2.5L 4-cyl turbo RWD 19 24 21 $3,830
Cayman S 2.5L 4-cyl turbo RWD Manual 6-spd 2.5L 4-cyl turbo RWD 19 24 21 $3,830
Show 4 more configurations
2025 Porsche 718 gas configurations: EPA ratings and annual cost (+4)
TrimEngineDriveCityHwyComb.$/yr
Boxster GTS 4.0L 6-cyl RWD Manual 6-spd4.0L 6-cylRWD172419$4,160
Cayman GTS 4.0L 6-cyl RWD Manual 6-spd4.0L 6-cylRWD172419$4,160
GT4 RS4.0L 6-cylRWD151916$4,930
Spyder RS4.0L 6-cylRWD141916$5,000

14 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).

2024 Porsche 718 MPG

16–24 MPG · $3,400–$5,000/yr

Versus 2023: The most efficient configuration stays at 24 MPG. Its annual cost stays at $3,400.

Gas · 2.0L, 2.5L, 4.0L
Combined
16–24 MPG
Per year
$3,400–$5,000

Gas configurations (14)

2024 Porsche 718 gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
Boxster 2.0L 4-cyl turbo RWD Automatic (AM-S7) (Most efficient) 2.0L 4-cyl turbo RWD 21 27 24 $3,400
Cayman 2.0L 4-cyl turbo RWD Automatic (AM-S7) 2.0L 4-cyl turbo RWD 21 27 24 $3,400
Boxster 2.0L 4-cyl turbo RWD Manual 6-spd 2.0L 4-cyl turbo RWD 20 25 22 $3,710
Cayman 2.0L 4-cyl turbo RWD Manual 6-spd 2.0L 4-cyl turbo RWD 20 25 22 $3,710
Boxster S 2.5L 4-cyl turbo RWD Automatic (AM-S7) 2.5L 4-cyl turbo RWD 19 25 22 $3,720
Cayman S 2.5L 4-cyl turbo RWD Automatic (AM-S7) 2.5L 4-cyl turbo RWD 19 25 22 $3,720
Show 4 more configurations
2024 Porsche 718 gas configurations: EPA ratings and annual cost (+8)
TrimEngineDriveCityHwyComb.$/yr
Boxster GTS 4.0L 6-cyl RWD Automatic (AM-S7)4.0L 6-cylRWD192421$3,810
Cayman GTS 4.0L 6-cyl RWD Automatic (AM-S7)4.0L 6-cylRWD192421$3,810
Boxster S 2.5L 4-cyl turbo RWD Manual 6-spd2.5L 4-cyl turboRWD192421$3,830
Cayman S 2.5L 4-cyl turbo RWD Manual 6-spd2.5L 4-cyl turboRWD192421$3,830
Boxster GTS 4.0L 6-cyl RWD Manual 6-spd4.0L 6-cylRWD172419$4,160
Cayman GTS 4.0L 6-cyl RWD Manual 6-spd4.0L 6-cylRWD172419$4,160
GT4 RS4.0L 6-cylRWD151916$4,930
Spyder RS4.0L 6-cylRWD141916$5,000

14 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).

2023 Porsche 718 MPG

16–24 MPG · $3,400–$4,930/yr

Versus 2022: The most efficient configuration stays at 24 MPG. Its annual cost stays at $3,400.

Gas · 2.0L, 2.5L, 4.0L
Combined
16–24 MPG
Per year
$3,400–$4,930

Gas configurations (21)

2023 Porsche 718 gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
Boxster 2.0L 4-cyl turbo RWD Automatic (AM-S7) (Most efficient) 2.0L 4-cyl turbo RWD 21 27 24 $3,400
Cayman 2.0L 4-cyl turbo RWD Automatic (AM-S7) 2.0L 4-cyl turbo RWD 21 27 24 $3,400
Boxster T 2.0L 4-cyl turbo RWD Automatic (AM-S7) 2.0L 4-cyl turbo RWD 21 27 23 $3,450
Cayman T 2.0L 4-cyl turbo RWD Automatic (AM-S7) 2.0L 4-cyl turbo RWD 21 27 23 $3,450
Boxster T 2.0L 4-cyl turbo RWD Manual 6-spd 2.0L 4-cyl turbo RWD 20 26 22 $3,570
Cayman T 2.0L 4-cyl turbo RWD Manual 6-spd 2.0L 4-cyl turbo RWD 20 26 22 $3,570
Show 11 more configurations
2023 Porsche 718 gas configurations: EPA ratings and annual cost (+15)
TrimEngineDriveCityHwyComb.$/yr
Boxster 2.0L 4-cyl turbo RWD Manual 6-spd2.0L 4-cyl turboRWD202522$3,710
Cayman 2.0L 4-cyl turbo RWD Manual 6-spd2.0L 4-cyl turboRWD202522$3,710
Boxster S 2.5L 4-cyl turbo RWD Automatic (AM-S7)2.5L 4-cyl turboRWD192522$3,720
Cayman S 2.5L 4-cyl turbo RWD Automatic (AM-S7)2.5L 4-cyl turboRWD192522$3,720
Boxster GTS 4.0L 6-cyl turbo RWD Automatic (AM-S7)4.0L 6-cyl turboRWD192421$3,810
Cayman GTS 4.0L 6-cyl turbo RWD Automatic (AM-S7)4.0L 6-cyl turboRWD192421$3,810
Boxster S 2.5L 4-cyl turbo RWD Manual 6-spd2.5L 4-cyl turboRWD192421$3,830
Cayman S 2.5L 4-cyl turbo RWD Manual 6-spd2.5L 4-cyl turboRWD192421$3,830
Spyder 4.0L 6-cyl turbo RWD Automatic (AM-S7)4.0L 6-cyl turboRWD182420$3,960
Cayman GT4 4.0L 6-cyl turbo RWD Automatic (AM-S7)4.0L 6-cyl turboRWD182420$3,960
Boxster GTS 4.0L 6-cyl turbo RWD Manual 6-spd4.0L 6-cyl turboRWD172419$4,160
Cayman GTS 4.0L 6-cyl turbo RWD Manual 6-spd4.0L 6-cyl turboRWD172419$4,160
Spyder 4.0L 6-cyl turbo RWD Manual 6-spd4.0L 6-cyl turboRWD172319$4,180
Cayman GT4 4.0L 6-cyl turbo RWD Manual 6-spd4.0L 6-cyl turboRWD172319$4,200
GT4 RS4.0L 6-cylRWD151916$4,930

21 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).

2022 Porsche 718 MPG

19–24 MPG · $3,400–$4,180/yr

Versus 2021: The most efficient configuration stays at 24 MPG. Its annual cost stays at $3,400.

Gas · 2.0L, 2.5L, 4.0L
Combined
19–24 MPG
Per year
$3,400–$4,180

Gas configurations (20)

2022 Porsche 718 gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
Boxster 2.0L 4-cyl turbo RWD Automatic (AM-S7) (Most efficient) 2.0L 4-cyl turbo RWD 21 27 24 $3,400
Cayman 2.0L 4-cyl turbo RWD Automatic (AM-S7) 2.0L 4-cyl turbo RWD 21 27 24 $3,400
Boxster T 2.0L 4-cyl turbo RWD Automatic (AM-S7) 2.0L 4-cyl turbo RWD 21 27 23 $3,450
Cayman T 2.0L 4-cyl turbo RWD Automatic (AM-S7) 2.0L 4-cyl turbo RWD 21 27 23 $3,450
Boxster 2.0L 4-cyl turbo RWD Manual 6-spd 2.0L 4-cyl turbo RWD 20 26 22 $3,570
Cayman 2.0L 4-cyl turbo RWD Manual 6-spd 2.0L 4-cyl turbo RWD 20 26 22 $3,570
Show 10 more configurations
2022 Porsche 718 gas configurations: EPA ratings and annual cost (+14)
TrimEngineDriveCityHwyComb.$/yr
Boxster T 2.0L 4-cyl turbo RWD Manual 6-spd2.0L 4-cyl turboRWD202622$3,570
Cayman T 2.0L 4-cyl turbo RWD Manual 6-spd2.0L 4-cyl turboRWD202622$3,570
Boxster S 2.5L 4-cyl turbo RWD Automatic (AM-S7)2.5L 4-cyl turboRWD192522$3,720
Cayman S 2.5L 4-cyl turbo RWD Automatic (AM-S7)2.5L 4-cyl turboRWD192522$3,720
Boxster GTS 4.0L 6-cyl RWD Automatic (AM-S7)4.0L 6-cylRWD192421$3,810
Cayman GTS 4.0L 6-cyl RWD Automatic (AM-S7)4.0L 6-cylRWD192421$3,810
Boxster S 2.5L 4-cyl turbo RWD Manual 6-spd2.5L 4-cyl turboRWD192421$3,830
Cayman S 2.5L 4-cyl turbo RWD Manual 6-spd2.5L 4-cyl turboRWD192421$3,830
Spyder 4.0L 6-cyl RWD Automatic (AM-S7)4.0L 6-cylRWD182420$3,960
Cayman GT4 4.0L 6-cyl RWD Automatic (AM-S7)4.0L 6-cylRWD182420$3,960
Boxster GTS 4.0L 6-cyl RWD Manual 6-spd4.0L 6-cylRWD172419$4,160
Cayman GTS 4.0L 6-cyl RWD Manual 6-spd4.0L 6-cylRWD172419$4,160
Spyder 4.0L 6-cyl RWD Manual 6-spd4.0L 6-cylRWD172319$4,180
Cayman GT4 4.0L 6-cyl RWD Manual 6-spd4.0L 6-cylRWD172319$4,180

20 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).

2021 Porsche 718 MPG

19–24 MPG · $3,400–$4,210/yr
Gas · 2.0L, 2.5L, 4.0L
Combined
19–24 MPG
Per year
$3,400–$4,210

Gas configurations (20)

2021 Porsche 718 gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
Boxster 2.0L 4-cyl turbo RWD Automatic (AM-S7) (Most efficient) 2.0L 4-cyl turbo RWD 21 27 24 $3,400
Cayman 2.0L 4-cyl turbo RWD Automatic (AM-S7) 2.0L 4-cyl turbo RWD 21 27 24 $3,400
Boxster T 2.0L 4-cyl turbo RWD Automatic (AM-S7) 2.0L 4-cyl turbo RWD 21 27 23 $3,450
Cayman T 2.0L 4-cyl turbo RWD Automatic (AM-S7) 2.0L 4-cyl turbo RWD 21 27 23 $3,450
Boxster 2.0L 4-cyl turbo RWD Manual 6-spd 2.0L 4-cyl turbo RWD 20 26 22 $3,570
Cayman 2.0L 4-cyl turbo RWD Manual 6-spd 2.0L 4-cyl turbo RWD 20 26 22 $3,570
Show 10 more configurations
2021 Porsche 718 gas configurations: EPA ratings and annual cost (+14)
TrimEngineDriveCityHwyComb.$/yr
Boxster T 2.0L 4-cyl turbo RWD Manual 6-spd2.0L 4-cyl turboRWD202622$3,570
Cayman T 2.0L 4-cyl turbo RWD Manual 6-spd2.0L 4-cyl turboRWD202622$3,570
Boxster S 2.5L 4-cyl turbo RWD Automatic (AM-S7)2.5L 4-cyl turboRWD192522$3,720
Cayman S 2.5L 4-cyl turbo RWD Automatic (AM-S7)2.5L 4-cyl turboRWD192522$3,720
Boxster GTS 4.0L 6-cyl RWD Automatic (AM-S7)4.0L 6-cylRWD192421$3,810
Cayman GTS 4.0L 6-cyl RWD Automatic (AM-S7)4.0L 6-cylRWD192421$3,810
Boxster S 2.5L 4-cyl turbo RWD Manual 6-spd2.5L 4-cyl turboRWD192421$3,830
Cayman S 2.5L 4-cyl turbo RWD Manual 6-spd2.5L 4-cyl turboRWD192421$3,830
Spyder 4.0L 6-cyl RWD Automatic (AM-S7)4.0L 6-cylRWD182420$3,960
Cayman GT4 4.0L 6-cyl RWD Automatic (AM-S7)4.0L 6-cylRWD182420$3,960
Spyder 4.0L 6-cyl RWD Manual 6-spd4.0L 6-cylRWD172319$4,190
Cayman GT4 4.0L 6-cyl RWD Manual 6-spd4.0L 6-cylRWD172319$4,190
Boxster GTS 4.0L 6-cyl RWD Manual 6-spd4.0L 6-cylRWD172419$4,210
Cayman GTS 4.0L 6-cyl RWD Manual 6-spd4.0L 6-cylRWD172419$4,210

20 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).

Fuel cost by state

Yearly cost of the Boxster 2.0L 4-cyl turbo RWD: $4,060 in California and $2,950 in Texas, a $1,110 difference.

Gasoline prices: California: California state average; Washington: Washington state average; New York: New York state average; Florida: Florida state average; Texas: Texas state average (Sep 2026).
Fuel cost in every state

Similar cars

Closest combined MPG among MY2025 two-seater models.

EPA ratings: fueleconomy.gov file of Sep 29, 2026 · Prices: EIA regular gasoline, U.S. average, Sep 2026 ($4.36/gal) · 15,000 mi/yr, 55% city / 45% highway · How we calculate

Generations

Frequently asked questions

What gas mileage does the 2021-2025 Porsche 718 get?

EPA rates the 2021-2025 Porsche 718 at 16–24 MPG combined across 89 configurations and 5 model years. The most efficient version, the 2025 Boxster 2.0L 4-cyl turbo RWD, is rated 24 MPG (21 city, 27 highway).

Which years had the best MPG in the 2021-2025 Porsche 718?

Every model year of the 2021-2025 Porsche 718 tops out at 24 MPG combined, so no year is better than another.

Did EPA ratings change during the 2021-2025 Porsche 718?

Yes. Ratings changed in 2022, 2023 and 2024. In 2025 the values repeat the year before.

How does the 2021-2025 Porsche 718 compare with the previous generation?

The previous generation (2020 Porsche 718) is rated 19 MPG combined and costs $4,270 a year to fuel; the 2021-2025 model is rated 16–24 MPG and costs $3,400–$5,000 a year.

How much does it cost to fuel a 2025 Porsche 718 per year?

Driving 15,000 miles a year at premium gasoline $5.36/gal (U.S. average, Sep 2026), the Boxster 2.0L 4-cyl turbo RWD costs about $3,400 a year. Across all 14 configurations the cost runs $3,400–$5,000 a year. That is a $1,600 difference between the cheapest and the costliest configuration.

How much does it cost to drive a 2025 Porsche 718 100 miles?

About $22.67 per 100 miles for the Boxster 2.0L 4-cyl turbo RWD at premium gasoline $5.36/gal (U.S. average, Sep 2026), and between $22.67 and $33.33 across all configurations. That is the annual cost over 15,000 miles divided by 150.

Is the 2025 Porsche 718 more efficient in the city or on the highway?

The Boxster 2.0L 4-cyl turbo RWD is rated 21 city and 27 highway MPG, so it is more efficient on the highway, by 6 MPG.

How does the 2025 Porsche 718 compare with other two-seater configurations?

The Boxster 2.0L 4-cyl turbo RWD costs about $3,400 a year to fuel, $540 less than the class median of $3,940, and less than 8 of 10 two-seater configurations. The comparison covers all 57 rated two-seater configurations for MY2025, not weighted by sales.

Is the 2025 Porsche 718 different from the 2024 model?

No. EPA lists the same ratings for 2024 and 2025: 14 configurations rated 16–24 MPG combined. See the 2024 Porsche 718 for that year.