- Newest year: 2008
- Gas
- Small cars
2003-2008 Porsche Carrera 4 Cabriolet MPG & Fuel Cost
6 model years · 17–20 MPG combined
15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)
Cheaper to fuel than 3 of 10 small car configurations, MY2008. Ranked against all rated configurations, not sales-weighted.
2003-2008 Porsche Carrera 4 Cabriolet at a glance
The 2003-2008 Porsche Carrera 4 Cabriolet covers 6 model years in the EPA database (12 configurations in all), rated 17–20 MPG combined. The newest model year, 2008, costs about $4,020 a year to fuel for its most efficient version, the Carrera 4 Cabriolet 3.6L 6-cyl 4WD (20 MPG), at premium gasoline $5.36/gal (U.S. average, Sep 2026). EPA changed the ratings in 2005, 2006, 2007 and 2008; 2004 repeat the values of the year before. The best combined rating in the generation, 20 MPG, was reached in 2008.
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
2003-2008 Porsche Carrera 4 Cabriolet by model year
| Model year | Powertrains | Combined | $/yr | EPA ratings |
|---|---|---|---|---|
| 2008 | Gas | 19–20 MPG | $4,020–$4,230 | Ratings changed |
| 2007 | Gas | 19 MPG | $4,230 | Ratings changed |
| 2006 | Gas | 19 MPG | $4,230 | Ratings changed |
| 2005 | Gas | 18 MPG | $4,460 | Ratings changed |
| 2004 | Gas | 17–18 MPG | $4,460–$4,730 | Same EPA ratings as 2003 |
| 2003 | Gas | 17–18 MPG | $4,460–$4,730 | First year |
What the 2008 Carrera 4 Cabriolet 3.6L 6-cyl 4WD costs to drive
Per month
$335
$4,020 a year ÷ 12
Per 25 miles
$6.70
Per 100 miles
$26.80
Five years
$20,100
5 × the yearly cost, prices held at today's level
vs the small car median
$190more 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 Cabriolet MPG
Versus 2007: The most efficient configuration moves from 19 to 20 MPG, up 1. Its annual cost goes from $4,230 to $4,020, $210 less.
Gas configurations (2)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Carrera 4 Cabriolet 3.6L 6-cyl 4WD Manual 6-spd (Most efficient) | 3.6L 6-cyl | 4WD | 17 | 25 | 20 | $4,020 |
| Carrera 4 Cabriolet 3.6L 6-cyl 4WD Automatic 5-spd | 3.6L 6-cyl | 4WD | 17 | 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 Cabriolet MPG
19 MPG · $4,230/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 Cabriolet 3.6L 6-cyl 4WD Automatic 5-spd (Most efficient) | 3.6L 6-cyl | 4WD | 17 | 24 | 19 | $4,230 |
| Carrera 4 Cabriolet 3.6L 6-cyl 4WD Manual 6-spd | 3.6L 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).
2006 Porsche Carrera 4 Cabriolet MPG
19 MPG · $4,230/yr
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
Versus 2005: The most efficient configuration moves from 18 to 19 MPG, up 1. Its annual cost goes from $4,460 to $4,230, $230 less.
Gas configurations (2)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Carrera 4 Cabriolet 3.6L 6-cyl 4WD Automatic 5-spd (Most efficient) | 3.6L 6-cyl | 4WD | 16 | 24 | 19 | $4,230 |
| Carrera 4 Cabriolet 3.6L 6-cyl 4WD Manual 6-spd | 3.6L 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).
2005 Porsche Carrera 4 Cabriolet MPG
18 MPG · $4,460/yr
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
Versus 2004: The most efficient configuration stays at 18 MPG. Its annual cost stays at $4,460.
Gas configurations (2)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Carrera 4 Cabriolet 3.6L 6-cyl 4WD Automatic 5-spd (Most efficient) | 3.6L 6-cyl | 4WD | 15 | 22 | 18 | $4,460 |
| Carrera 4 Cabriolet 3.6L 6-cyl 4WD Manual 6-spd | 3.6L 6-cyl | 4WD | 15 | 22 | 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).
2004 Porsche Carrera 4 Cabriolet MPG
Same EPA ratings as 2003
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
EPA lists the same ratings for the 2004 Porsche Carrera 4 Cabriolet as for the 2003 model, so the configurations and costs are the ones in the 2003 section above.See 2003
2003 Porsche Carrera 4 Cabriolet MPG
17–18 MPG · $4,460–$4,730/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 Cabriolet 3.6L 6-cyl 4WD Manual 6-spd (Most efficient) | 3.6L 6-cyl | 4WD | 15 | 22 | 18 | $4,460 |
| Carrera 4 Cabriolet 3.6L 6-cyl 4WD Automatic 5-spd | 3.6L 6-cyl | 4WD | 15 | 21 | 17 | $4,730 |
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 Cabriolet 3.6L 6-cyl 4WD: $4,790 in California and $3,480 in Texas, a $1,310 difference.
- California $4,790
- Washington $4,510
- New York $3,970
- Florida $3,670
- Texas $3,480
Similar cars
Closest combined MPG among MY2008 small car models.
Generations
- 2003-2008
- 2009
Frequently asked questions
What gas mileage does the 2003-2008 Porsche Carrera 4 Cabriolet get?
EPA rates the 2003-2008 Porsche Carrera 4 Cabriolet at 17–20 MPG combined across 12 configurations and 6 model years. The most efficient version, the 2008 Carrera 4 Cabriolet 3.6L 6-cyl 4WD, is rated 20 MPG (17 city, 25 highway).
Which years had the best MPG in the 2003-2008 Porsche Carrera 4 Cabriolet?
The Carrera 4 Cabriolet 3.6L 6-cyl 4WD reached the generation's best combined rating, 20 MPG, in 2008. The lowest top rating, 18 MPG, was in 2003, 2004 and 2005.
Did EPA ratings change during the 2003-2008 Porsche Carrera 4 Cabriolet?
Yes. Ratings changed in 2005, 2006, 2007 and 2008. In 2004 the values repeat the year before.
How much does it cost to fuel a 2008 Porsche Carrera 4 Cabriolet per year?
Driving 15,000 miles a year at premium gasoline $5.36/gal (U.S. average, Sep 2026), the Carrera 4 Cabriolet 3.6L 6-cyl 4WD costs about $4,020 a year. Across all 2 configurations the cost runs $4,020–$4,230 a year. That is a $210 difference between the cheapest and the costliest configuration.
How much does it cost to drive a 2008 Porsche Carrera 4 Cabriolet 100 miles?
About $26.80 per 100 miles for the Carrera 4 Cabriolet 3.6L 6-cyl 4WD at premium gasoline $5.36/gal (U.S. average, Sep 2026), and between $26.80 and $28.20 across all configurations. That is the annual cost over 15,000 miles divided by 150.
Is the 2008 Porsche Carrera 4 Cabriolet more efficient in the city or on the highway?
The Carrera 4 Cabriolet 3.6L 6-cyl 4WD is rated 17 city and 25 highway MPG, so it is more efficient on the highway, by 8 MPG.
How does the 2008 Porsche Carrera 4 Cabriolet compare with other small car configurations?
The Carrera 4 Cabriolet 3.6L 6-cyl 4WD costs about $4,020 a year to fuel, $190 more than the class median of $3,830, and less than 3 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 Cabriolet different from the 2007 model?
The most efficient configuration moves from 19 to 20 MPG, up 1. Its annual cost goes from $4,230 to $4,020, $210 less. EPA lists 2 configurations for 2008 against 2 configurations for 2007. See the 2007 Porsche Carrera 4 Cabriolet for that year.