- Newest year: 2005
- Gas
- Small cars
2004-2005 Porsche Carrera 4 S Cabriolet MPG & Fuel Cost
2 model years · 17–18 MPG combined
15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)
Cheaper to fuel than 1 of 10 small car configurations, MY2005. Ranked against all rated configurations, not sales-weighted.
2004-2005 Porsche Carrera 4 S Cabriolet at a glance
The 2004-2005 Porsche Carrera 4 S Cabriolet covers 2 model years in the EPA database (4 configurations in all), rated 17–18 MPG combined. The newest model year, 2005, costs about $4,460 a year to fuel for its most efficient version, the Carrera 4 S Cabriolet 3.6L 6-cyl 4WD (18 MPG), at premium gasoline $5.36/gal (U.S. average, Sep 2026). EPA changed the ratings in 2005.
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
2004-2005 Porsche Carrera 4 S Cabriolet by model year
What the 2005 Carrera 4 S Cabriolet 3.6L 6-cyl 4WD costs to drive
Per month
$372
$4,460 a year ÷ 12
Per 25 miles
$7.43
Per 100 miles
$29.73
Five years
$22,300
5 × the yearly cost, prices held at today's level
vs the small car median
$810more a year
Class median $3,650 a year, MY2005
Based on 15,000 miles a year and premium gasoline $5.36/gal (U.S. average, Sep 2026).
2005 Porsche Carrera 4 S Cabriolet MPG
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 S Cabriolet 3.6L 6-cyl 4WD Automatic 5-spd (Most efficient) | 3.6L 6-cyl | 4WD | 15 | 22 | 18 | $4,460 |
| Carrera 4 S 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 S 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 S Cabriolet 3.6L 6-cyl 4WD Manual 6-spd (Most efficient) | 3.6L 6-cyl | 4WD | 15 | 22 | 18 | $4,460 |
| Carrera 4 S 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 S Cabriolet 3.6L 6-cyl 4WD: $5,320 in California and $3,870 in Texas, a $1,450 difference.
- California $5,320
- Washington $5,010
- New York $4,410
- Florida $4,080
- Texas $3,870
Similar cars
Closest combined MPG among MY2005 small car models.
Generations
Frequently asked questions
What gas mileage does the 2004-2005 Porsche Carrera 4 S Cabriolet get?
EPA rates the 2004-2005 Porsche Carrera 4 S Cabriolet at 17–18 MPG combined across 4 configurations and 2 model years. The most efficient version, the 2005 Carrera 4 S Cabriolet 3.6L 6-cyl 4WD, is rated 18 MPG (15 city, 22 highway).
Which years had the best MPG in the 2004-2005 Porsche Carrera 4 S Cabriolet?
Every model year of the 2004-2005 Porsche Carrera 4 S Cabriolet tops out at 18 MPG combined, so no year is better than another.
Did EPA ratings change during the 2004-2005 Porsche Carrera 4 S Cabriolet?
Yes. Ratings changed in 2005.
How much does it cost to fuel a 2005 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 3.6L 6-cyl 4WD costs about $4,460 a year. Across all 2 configurations the cost runs $4,460 a year.
How much does it cost to drive a 2005 Porsche Carrera 4 S Cabriolet 100 miles?
About $29.73 per 100 miles for the Carrera 4 S Cabriolet 3.6L 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 2005 Porsche Carrera 4 S Cabriolet more efficient in the city or on the highway?
The Carrera 4 S Cabriolet 3.6L 6-cyl 4WD is rated 15 city and 22 highway MPG, so it is more efficient on the highway, by 7 MPG.
How does the 2005 Porsche Carrera 4 S Cabriolet compare with other small car configurations?
The Carrera 4 S Cabriolet 3.6L 6-cyl 4WD costs about $4,460 a year to fuel, $810 more than the class median of $3,650, and less than 1 of 10 small car configurations. The comparison covers all 370 rated small car configurations for MY2005, not weighted by sales.
Is the 2005 Porsche Carrera 4 S Cabriolet different from the 2004 model?
The most efficient configuration stays at 18 MPG. Its annual cost stays at $4,460. EPA lists 2 configurations for 2005 against 2 configurations for 2004. See the 2004 Porsche Carrera 4 S Cabriolet for that year.