- Newest year: 2016
- Gas
- Two-seaters
2014-2016 Porsche Cayman MPG & Fuel Cost
3 model years · 20–25 MPG combined
15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)
Cheaper to fuel than 8 of 10 two-seater configurations, MY2016. Ranked against all rated configurations, not sales-weighted.
2014-2016 Porsche Cayman at a glance
The 2014-2016 Porsche Cayman covers 3 model years in the EPA database (17 configurations in all), rated 20–25 MPG combined. The newest model year, 2016, costs about $3,180 a year to fuel for its most efficient version, the Cayman 2.7L 6-cyl RWD (25 MPG), at premium gasoline $5.36/gal (U.S. average, Sep 2026). EPA changed the ratings in 2015 and 2016.
2014-2016 Porsche Cayman by model year
What the 2016 Cayman 2.7L 6-cyl RWD costs to drive
Per month
$265
$3,180 a year ÷ 12
Per 25 miles
$5.30
Per 100 miles
$21.20
Five years
$15,900
5 × the yearly cost, prices held at today's level
vs the two-seater median
$940less a year
Class median $4,120 a year, MY2016
Based on 15,000 miles a year and premium gasoline $5.36/gal (U.S. average, Sep 2026).
2016 Porsche Cayman MPG
Versus 2015: The most efficient configuration stays at 25 MPG. Its annual cost stays at $3,180.
Gas configurations (7)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Cayman 2.7L 6-cyl RWD Automatic (AM-S7) (Most efficient) | 2.7L 6-cyl | RWD | 22 | 31 | 25 | $3,180 |
| GTS 3.4L 6-cyl RWD Automatic (AM-S7) | 3.4L 6-cyl | RWD | 21 | 30 | 25 | $3,260 |
| S 3.4L 6-cyl RWD Automatic (AM-S7) | 3.4L 6-cyl | RWD | 21 | 29 | 24 | $3,360 |
| Cayman 2.7L 6-cyl RWD Manual 6-spd | 2.7L 6-cyl | RWD | 20 | 29 | 24 | $3,400 |
| S 3.4L 6-cyl RWD Manual 6-spd | 3.4L 6-cyl | RWD | 20 | 27 | 22 | $3,580 |
| GTS 3.4L 6-cyl RWD Manual 6-spd | 3.4L 6-cyl | RWD | 19 | 26 | 22 | $3,660 |
| GT4 | 3.8L 6-cyl | RWD | 18 | 23 | 20 | $4,050 |
7 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2015 Porsche Cayman MPG
22–25 MPG · $3,180–$3,660/yr
Versus 2014: The most efficient configuration stays at 25 MPG. Its annual cost stays at $3,180.
Gas configurations (6)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Cayman 2.7L 6-cyl RWD Automatic (AM-S7) (Most efficient) | 2.7L 6-cyl | RWD | 22 | 31 | 25 | $3,180 |
| GTS 3.4L 6-cyl RWD Automatic (AM-S7) | 3.4L 6-cyl | RWD | 21 | 30 | 25 | $3,260 |
| S 3.4L 6-cyl RWD Automatic (AM-S7) | 3.4L 6-cyl | RWD | 21 | 29 | 24 | $3,360 |
| Cayman 2.7L 6-cyl RWD Manual 6-spd | 2.7L 6-cyl | RWD | 20 | 29 | 24 | $3,400 |
| S 3.4L 6-cyl RWD Manual 6-spd | 3.4L 6-cyl | RWD | 20 | 27 | 22 | $3,580 |
| GTS 3.4L 6-cyl RWD Manual 6-spd | 3.4L 6-cyl | RWD | 19 | 26 | 22 | $3,660 |
6 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2014 Porsche Cayman MPG
22–25 MPG · $3,180–$3,580/yr
Gas configurations (4)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Cayman 2.7L 6-cyl RWD Automatic (AM-S7) (Most efficient) | 2.7L 6-cyl | RWD | 22 | 31 | 25 | $3,180 |
| S 3.4L 6-cyl RWD Automatic (AM-S7) | 3.4L 6-cyl | RWD | 21 | 29 | 24 | $3,360 |
| Cayman 2.7L 6-cyl RWD Manual 6-spd | 2.7L 6-cyl | RWD | 20 | 29 | 24 | $3,400 |
| S 3.4L 6-cyl RWD Manual 6-spd | 3.4L 6-cyl | RWD | 20 | 27 | 22 | $3,580 |
4 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 Cayman 2.7L 6-cyl RWD: $3,790 in California and $2,750 in Texas, a $1,040 difference.
- California $3,790
- Washington $3,560
- New York $3,140
- Florida $2,900
- Texas $2,750
Similar cars
Closest combined MPG among MY2016 two-seater models.
Generations
Frequently asked questions
What gas mileage does the 2014-2016 Porsche Cayman get?
EPA rates the 2014-2016 Porsche Cayman at 20–25 MPG combined across 17 configurations and 3 model years. The most efficient version, the 2016 Cayman 2.7L 6-cyl RWD, is rated 25 MPG (22 city, 31 highway).
Which years had the best MPG in the 2014-2016 Porsche Cayman?
Every model year of the 2014-2016 Porsche Cayman tops out at 25 MPG combined, so no year is better than another.
Did EPA ratings change during the 2014-2016 Porsche Cayman?
Yes. Ratings changed in 2015 and 2016.
How does the 2014-2016 Porsche Cayman compare with the previous generation?
The previous generation (2009-2012 Porsche Cayman) is rated 21–24 MPG combined and costs $3,350–$3,740 a year to fuel; the 2014-2016 model is rated 20–25 MPG and costs $3,180–$4,050 a year.
How much does it cost to fuel a 2016 Porsche Cayman per year?
Driving 15,000 miles a year at premium gasoline $5.36/gal (U.S. average, Sep 2026), the Cayman 2.7L 6-cyl RWD costs about $3,180 a year. Across all 7 configurations the cost runs $3,180–$4,050 a year. That is a $870 difference between the cheapest and the costliest configuration.
How much does it cost to drive a 2016 Porsche Cayman 100 miles?
About $21.20 per 100 miles for the Cayman 2.7L 6-cyl RWD at premium gasoline $5.36/gal (U.S. average, Sep 2026), and between $21.20 and $27.00 across all configurations. That is the annual cost over 15,000 miles divided by 150.
Is the 2016 Porsche Cayman more efficient in the city or on the highway?
The Cayman 2.7L 6-cyl RWD is rated 22 city and 31 highway MPG, so it is more efficient on the highway, by 9 MPG.
How does the 2016 Porsche Cayman compare with other two-seater configurations?
The Cayman 2.7L 6-cyl RWD costs about $3,180 a year to fuel, $940 less than the class median of $4,120, and less than 8 of 10 two-seater configurations. The comparison covers all 87 rated two-seater configurations for MY2016, not weighted by sales.
Is the 2016 Porsche Cayman different from the 2015 model?
The most efficient configuration stays at 25 MPG. Its annual cost stays at $3,180. EPA lists 7 configurations for 2016 against 6 configurations for 2015. See the 2015 Porsche Cayman for that year.