- Newest year: 2005
- Gas
- Small cars
2003-2005 Porsche Targa MPG & Fuel Cost
3 model years · 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, MY2005. Ranked against all rated configurations, not sales-weighted.
2003-2005 Porsche Targa at a glance
The 2003-2005 Porsche Targa covers 3 model years in the EPA database (11 configurations in all), rated 19 MPG combined. The newest model year, 2005, costs about $4,230 a year to fuel for its most efficient version, the Targa 3.6L 6-cyl RWD (19 MPG), at premium gasoline $5.36/gal (U.S. average, Sep 2026). EPA changed the ratings in 2004 and 2005.
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
2003-2005 Porsche Targa by model year
What the 2005 Targa 3.6L 6-cyl RWD 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
$580more 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 Targa 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 19 MPG. Its annual cost stays at $4,230.
Gas configurations (4)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Targa 3.6L 6-cyl RWD Automatic 5-spd (Most efficient) | 3.6L 6-cyl | RWD | 16 | 24 | 19 | $4,230 |
| Targa 3.6L 6-cyl RWD Manual 6-spd | 3.6L 6-cyl | RWD | 16 | 24 | 19 | $4,230 |
| Kit 3.6L 6-cyl RWD Automatic 5-spd | 3.6L 6-cyl | RWD | 16 | 24 | 19 | $4,230 |
| Kit 3.6L 6-cyl RWD Manual 6-spd | 3.6L 6-cyl | RWD | 16 | 24 | 19 | $4,230 |
4 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2004 Porsche Targa 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 2003: The most efficient configuration stays at 19 MPG. Its annual cost stays at $4,230.
Gas configurations (3)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Targa 3.6L 6-cyl RWD Automatic 5-spd (Most efficient) | 3.6L 6-cyl | RWD | 16 | 24 | 19 | $4,230 |
| Targa 3.6L 6-cyl RWD Manual 6-spd | 3.6L 6-cyl | RWD | 16 | 24 | 19 | $4,230 |
| Kit | 3.6L 6-cyl | RWD | 16 | 24 | 19 | $4,230 |
3 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2003 Porsche Targa 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.
Gas configurations (4)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Targa 3.6L 6-cyl RWD Automatic 5-spd (Most efficient) | 3.6L 6-cyl | RWD | 16 | 24 | 19 | $4,230 |
| Targa 3.6L 6-cyl RWD Manual 6-spd | 3.6L 6-cyl | RWD | 16 | 24 | 19 | $4,230 |
| Kit 3.6L 6-cyl RWD Automatic 5-spd | 3.6L 6-cyl | RWD | 16 | 24 | 19 | $4,230 |
| Kit 3.6L 6-cyl RWD Manual 6-spd | 3.6L 6-cyl | RWD | 16 | 24 | 19 | $4,230 |
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 Targa 3.6L 6-cyl RWD: $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 MY2005 small car models.
Generations
- 2003-2005
Frequently asked questions
What gas mileage does the 2003-2005 Porsche Targa get?
EPA rates the 2003-2005 Porsche Targa at 19 MPG combined across 11 configurations and 3 model years. The most efficient version, the 2005 Targa 3.6L 6-cyl RWD, is rated 19 MPG (16 city, 24 highway).
Which years had the best MPG in the 2003-2005 Porsche Targa?
Every model year of the 2003-2005 Porsche Targa tops out at 19 MPG combined, so no year is better than another.
Did EPA ratings change during the 2003-2005 Porsche Targa?
Yes. Ratings changed in 2004 and 2005.
How much does it cost to fuel a 2005 Porsche Targa per year?
Driving 15,000 miles a year at premium gasoline $5.36/gal (U.S. average, Sep 2026), the Targa 3.6L 6-cyl RWD costs about $4,230 a year. Across all 4 configurations the cost runs $4,230 a year.
How much does it cost to drive a 2005 Porsche Targa 100 miles?
About $28.20 per 100 miles for the Targa 3.6L 6-cyl RWD 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 Targa more efficient in the city or on the highway?
The Targa 3.6L 6-cyl RWD is rated 16 city and 24 highway MPG, so it is more efficient on the highway, by 8 MPG.
How does the 2005 Porsche Targa compare with other small car configurations?
The Targa 3.6L 6-cyl RWD costs about $4,230 a year to fuel, $580 more than the class median of $3,650, and less than 2 of 10 small car configurations. The comparison covers all 370 rated small car configurations for MY2005, not weighted by sales.
Is the 2005 Porsche Targa different from the 2004 model?
The most efficient configuration stays at 19 MPG. Its annual cost stays at $4,230. EPA lists 4 configurations for 2005 against 3 configurations for 2004. See the 2004 Porsche Targa for that year.