- Newest year: 2008
- Gas
- Small cars
2006-2008 Porsche Carrera 4 S Cabriolet MPG & Fuel Cost
3 model years · 18–19 MPG combined
15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)
Cheaper to fuel than 2 of 10 small car configurations, MY2008. Ranked against all rated configurations, not sales-weighted.
2006-2008 Porsche Carrera 4 S Cabriolet at a glance
The 2006-2008 Porsche Carrera 4 S Cabriolet covers 3 model years in the EPA database (6 configurations in all), rated 18–19 MPG combined. The newest model year, 2008, costs about $4,230 a year to fuel for its most efficient version, the Carrera 4 S Cabriolet 3.8L 6-cyl 4WD (19 MPG), at premium gasoline $5.36/gal (U.S. average, Sep 2026). EPA changed the ratings in 2007 and 2008.
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
2006-2008 Porsche Carrera 4 S Cabriolet by model year
What the 2008 Carrera 4 S Cabriolet 3.8L 6-cyl 4WD costs to drive
Per month
$353
$4,230 a year ÷ 12
Per 25 miles
$7.05
Per 100 miles
$28.20
Five years
$21,150
5 × the yearly cost, prices held at today's level
vs the small car median
$400more a year
Class median $3,830 a year, MY2008
Based on 15,000 miles a year and premium gasoline $5.36/gal (U.S. average, Sep 2026).
2008 Porsche Carrera 4 S Cabriolet MPG
Versus 2007: The most efficient configuration stays at 19 MPG. Its annual cost stays at $4,230.
Gas configurations (2)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Carrera 4 S Cabriolet 3.8L 6-cyl 4WD Automatic 5-spd (Most efficient) | 3.8L 6-cyl | 4WD | 17 | 23 | 19 | $4,230 |
| Carrera 4 S Cabriolet 3.8L 6-cyl 4WD Manual 6-spd | 3.8L 6-cyl | 4WD | 16 | 24 | 19 | $4,230 |
2 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2007 Porsche Carrera 4 S Cabriolet MPG
18–19 MPG · $4,230–$4,460/yr
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
Versus 2006: The most efficient configuration stays at 19 MPG. Its annual cost stays at $4,230.
Gas configurations (2)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Carrera 4 S Cabriolet 3.8L 6-cyl 4WD Automatic 5-spd (Most efficient) | 3.8L 6-cyl | 4WD | 17 | 23 | 19 | $4,230 |
| Carrera 4 S Cabriolet 3.8L 6-cyl 4WD Manual 6-spd | 3.8L 6-cyl | 4WD | 16 | 23 | 18 | $4,460 |
2 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2006 Porsche Carrera 4 S Cabriolet MPG
18–19 MPG · $4,230–$4,460/yr
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
Gas configurations (2)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Carrera 4 S Cabriolet 3.8L 6-cyl 4WD Automatic 5-spd (Most efficient) | 3.8L 6-cyl | 4WD | 16 | 23 | 19 | $4,230 |
| Carrera 4 S Cabriolet 3.8L 6-cyl 4WD Manual 6-spd | 3.8L 6-cyl | 4WD | 15 | 23 | 18 | $4,460 |
2 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 Carrera 4 S Cabriolet 3.8L 6-cyl 4WD: $5,040 in California and $3,670 in Texas, a $1,370 difference.
- California $5,040
- Washington $4,740
- New York $4,180
- Florida $3,860
- Texas $3,670
Similar cars
Closest combined MPG among MY2008 small car models.
Generations
Frequently asked questions
What gas mileage does the 2006-2008 Porsche Carrera 4 S Cabriolet get?
EPA rates the 2006-2008 Porsche Carrera 4 S Cabriolet at 18–19 MPG combined across 6 configurations and 3 model years. The most efficient version, the 2008 Carrera 4 S Cabriolet 3.8L 6-cyl 4WD, is rated 19 MPG (17 city, 23 highway).
Which years had the best MPG in the 2006-2008 Porsche Carrera 4 S Cabriolet?
Every model year of the 2006-2008 Porsche Carrera 4 S Cabriolet tops out at 19 MPG combined, so no year is better than another.
Did EPA ratings change during the 2006-2008 Porsche Carrera 4 S Cabriolet?
Yes. Ratings changed in 2007 and 2008.
How does the 2006-2008 Porsche Carrera 4 S Cabriolet compare with the previous generation?
The previous generation (2004-2005 Porsche Carrera 4 S Cabriolet) is rated 17–18 MPG combined and costs $4,460–$4,730 a year to fuel; the 2006-2008 model is rated 18–19 MPG and costs $4,230–$4,460 a year.
How much does it cost to fuel a 2008 Porsche Carrera 4 S Cabriolet per year?
Driving 15,000 miles a year at premium gasoline $5.36/gal (U.S. average, Sep 2026), the Carrera 4 S Cabriolet 3.8L 6-cyl 4WD costs about $4,230 a year. Across all 2 configurations the cost runs $4,230 a year.
How much does it cost to drive a 2008 Porsche Carrera 4 S Cabriolet 100 miles?
About $28.20 per 100 miles for the Carrera 4 S Cabriolet 3.8L 6-cyl 4WD at premium gasoline $5.36/gal (U.S. average, Sep 2026). That is the annual cost over 15,000 miles divided by 150.
Is the 2008 Porsche Carrera 4 S Cabriolet more efficient in the city or on the highway?
The Carrera 4 S Cabriolet 3.8L 6-cyl 4WD is rated 17 city and 23 highway MPG, so it is more efficient on the highway, by 6 MPG.
How does the 2008 Porsche Carrera 4 S Cabriolet compare with other small car configurations?
The Carrera 4 S Cabriolet 3.8L 6-cyl 4WD costs about $4,230 a year to fuel, $400 more than the class median of $3,830, and less than 2 of 10 small car configurations. The comparison covers all 307 rated small car configurations for MY2008, not weighted by sales.
Is the 2008 Porsche Carrera 4 S Cabriolet different from the 2007 model?
The most efficient configuration stays at 19 MPG. Its annual cost stays at $4,230. EPA lists 2 configurations for 2008 against 2 configurations for 2007. See the 2007 Porsche Carrera 4 S Cabriolet for that year.