- Newest year: 2008
- Gas
- Two-seaters
- Same as 2007
2007-2008 Porsche Cayman MPG & Fuel Cost
2 model years · 21–23 MPG combined
15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)
Cheaper to fuel than 9 of 10 two-seater configurations, MY2008. Ranked against all rated configurations, not sales-weighted.
2007-2008 Porsche Cayman at a glance
The 2007-2008 Porsche Cayman covers 2 model years in the EPA database (10 configurations in all), rated 21–23 MPG combined. The newest model year, 2008, costs about $3,490 a year to fuel for its most efficient version, the Cayman 2.7L 6-cyl RWD (23 MPG), at premium gasoline $5.36/gal (U.S. average, Sep 2026). EPA lists identical ratings for every model year of this generation.
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
2007-2008 Porsche Cayman by model year
What the 2008 Cayman 2.7L 6-cyl RWD costs to drive
Per month
$291
$3,490 a year ÷ 12
Per 25 miles
$5.82
Per 100 miles
$23.27
Five years
$17,450
5 × the yearly cost, prices held at today's level
vs the two-seater median
$530less a year
Class median $4,020 a year, MY2008
Based on 15,000 miles a year and premium gasoline $5.36/gal (U.S. average, Sep 2026).
2008 Porsche Cayman MPG
EPA lists the same ratings for the 2008 Porsche Cayman as for the 2007 model, so the configurations and costs are the ones in the 2007 section above.See 2007
Gas configurations (5)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Cayman 2.7L 6-cyl RWD Manual 5-spd (Most efficient) | 2.7L 6-cyl | RWD | 20 | 29 | 23 | $3,490 |
| Cayman 2.7L 6-cyl RWD Manual 6-spd | 2.7L 6-cyl | RWD | 19 | 28 | 22 | $3,650 |
| Cayman 2.7L 6-cyl RWD Automatic 5-spd | 2.7L 6-cyl | RWD | 19 | 26 | 21 | $3,830 |
| S 3.4L 6-cyl RWD Automatic 5-spd | 3.4L 6-cyl | RWD | 18 | 25 | 21 | $3,830 |
| S 3.4L 6-cyl RWD Manual 6-spd | 3.4L 6-cyl | RWD | 18 | 26 | 21 | $3,830 |
5 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2007 Porsche Cayman MPG
21–23 MPG · $3,490–$3,830/yr
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
Gas configurations (5)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Cayman 2.7L 6-cyl RWD Manual 5-spd (Most efficient) | 2.7L 6-cyl | RWD | 20 | 29 | 23 | $3,490 |
| Cayman 2.7L 6-cyl RWD Manual 6-spd | 2.7L 6-cyl | RWD | 19 | 28 | 22 | $3,650 |
| Cayman 2.7L 6-cyl RWD Automatic 5-spd | 2.7L 6-cyl | RWD | 19 | 26 | 21 | $3,830 |
| S 3.4L 6-cyl RWD Automatic 5-spd | 3.4L 6-cyl | RWD | 18 | 25 | 21 | $3,830 |
| S 3.4L 6-cyl RWD Manual 6-spd | 3.4L 6-cyl | RWD | 18 | 26 | 21 | $3,830 |
5 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: $4,170 in California and $3,030 in Texas, a $1,140 difference.
- California $4,170
- Washington $3,920
- New York $3,450
- Florida $3,190
- Texas $3,030
Similar cars
Closest combined MPG among MY2008 two-seater models.
Generations
Frequently asked questions
What gas mileage does the 2007-2008 Porsche Cayman get?
EPA rates the 2007-2008 Porsche Cayman at 21–23 MPG combined across 10 configurations and 2 model years. The most efficient version, the 2008 Cayman 2.7L 6-cyl RWD, is rated 23 MPG (20 city, 29 highway).
Which years had the best MPG in the 2007-2008 Porsche Cayman?
Every model year of the 2007-2008 Porsche Cayman tops out at 23 MPG combined, so no year is better than another.
Did EPA ratings change during the 2007-2008 Porsche Cayman?
No. EPA lists the same ratings for every model year from 2007 to 2008.
How does the 2007-2008 Porsche Cayman compare with the previous generation?
The previous generation (2006 Porsche Cayman) is rated 21 MPG combined and costs $3,830 a year to fuel; the 2007-2008 model is rated 21–23 MPG and costs $3,490–$3,830 a year.
How much does it cost to fuel a 2008 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 $3,490 a year. Across all 5 configurations the cost runs $3,490–$3,830 a year. That is a $340 difference between the cheapest and the costliest configuration.
How much does it cost to drive a 2008 Porsche Cayman 100 miles?
About $23.27 per 100 miles for the Cayman 2.7L 6-cyl RWD at premium gasoline $5.36/gal (U.S. average, Sep 2026), and between $23.27 and $25.53 across all configurations. That is the annual cost over 15,000 miles divided by 150.
Is the 2008 Porsche Cayman more efficient in the city or on the highway?
The Cayman 2.7L 6-cyl RWD is rated 20 city and 29 highway MPG, so it is more efficient on the highway, by 9 MPG.
How does the 2008 Porsche Cayman compare with other two-seater configurations?
The Cayman 2.7L 6-cyl RWD costs about $3,490 a year to fuel, $530 less than the class median of $4,020, and less than 9 of 10 two-seater configurations. The comparison covers all 81 rated two-seater configurations for MY2008, not weighted by sales.
Is the 2008 Porsche Cayman different from the 2007 model?
No. EPA lists the same ratings for 2007 and 2008: 5 configurations rated 21–23 MPG combined. See the 2007 Porsche Cayman for that year.