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2025 Porsche 718 Cayman mpg

Combined mpg, RWD

24mpg

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12,000 miles a year. Gas $3.20.

1015202530Median 19718 Cayman: 24 mpg
32 coupes (2025), one trim per model: the cheapest with a rating. Median 19 mpg.
2025 Porsche 718 Cayman mpg by trim
TrimEngineDriveCity mpgHwy mpgCombinedTank, galMiles per tankCost a year
RWD2.0L 4cylRWD21272414.3343$1,600
Coupe RWD2.0L 4cylRWD21272414.2341$1,600
Style Edition RWD2.0L 4cylRWD21272414.3343$1,600
Style Edition Coupe RWD2.0L 4cylRWD21272414.2341$1,600
S RWD2.5L 4cylRWD19252216.9372$1,745
S Coupe RWD2.5L 4cylRWD19252216.9372$1,745
GTS 4.0 RWD4.0L 6cylRWD19242116.9355$1,829
GTS 4.0 Coupe RWD4.0L 6cylRWD19242116.9355$1,829
GT4 RS RWD4.0L 6cylRWD15191616.9270$2,400
GT4 RS Coupe RWD4.0L 6cylRWD15191616.9270$2,400

Fuel cost

RWD, 24 mpg combined.

Per year
$1,600
Per month
$133
Per mile
13.3 cents
Fill the tank
$45.76
  • Top trim: GT4 RS Coupe RWD. $2,400 a year. $800 more than the RWD.

Trip cost

RWD: 27 mpg highway
TripGallonsCost
100 miles3.7$11.85
300 miles11.1$35.56
500 miles18.5$59.26
1,000 miles37.0$119

Commute cost

Per month
$116
Per year
$1,387
Miles a month
867

RWD. 20 miles each way, 5 days a week.

Is 24 mpg good? Yes. Beats 52% of 2026 cars.

MPG by year

2222.52323.52420172019202120232025
718 Cayman: combined mpg of the cheapest rated trim, 2017 to 2025.

718 Cayman by year: price, hp, mpg, size

Rivals

2025 Porsche 718 Cayman and rivals
CarCheapest trimCombined mpgCompare
2025 Porsche 718 CaymanRWD24 mpg
2025 Chevrolet CorvetteStingray RWD19 mpgCompare
2025 BMW M4Coupe RWD19 mpgCompare
2025 BMW M2RWD19 mpgCompare

What this cannot tell you

EPA ratings. Your own mpg will differ.

Gas prices change by state and by week.

How values are checked