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2002 Porsche 911 Turbo Coupe
Shown: 2002 Porsche 911 Turbo Coupe. Photo: Elise240SX, CC BY-SA 4.0, via Wikimedia Commons
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  • MY2003–2005

Porsche Targa MPG & Fuel Cost by Year

3 model years · 2003–2005

19 MPG
Combined
16 MPG
City
24 MPG
Highway
Annual cost · MY2005 Targa 3.6L 6-cyl RWD
$4,230

15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)

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Porsche Targa fuel economy at a glance

EPA has rated the Porsche Targa for 3 model years, 2003 to 2005. Across those years its combined rating runs 19 MPG. The latest model year, 2005, has 4 configurations rated 19 MPG combined and costing $4,230 a year to fuel at premium gasoline $5.36/gal (U.S. average, Sep 2026). The most efficient configuration on record since 2003 is the 2005 Targa 3.6L 6-cyl RWD, at 19 MPG.

Porsche Targa MPG by year

1820 20032005 Gas 1820 20032005 Gas
Combined MPG: the line is the most efficient configuration, the shaded band reaches down to the least efficient. Dotted lines mark new generations.
Porsche Targa: combined fuel economy and annual fuel cost for each model year, grouped by generation
Year Gas (MPG) $/yr
2003-2005 Generation page
2005 19 $4,230
2004 19 $4,230
2003 19 $4,230

Costs use the current EIA price set and 15,000 miles a year for every year, so years are comparable. Green marks the best year for each powertrain.

Porsche Targa generations

1 generations between 2003 and 2005. Open one for the table of every model year and configuration.

2005 powertrain options

Gas · 3.6L
Combined
19 MPG
Per year
$4,230
See gas configurations
EPA ratings: fueleconomy.gov file of Sep 29, 2026 · premium gasoline $5.36/gal (U.S. average, Sep 2026) · 15,000 mi/yr, 55% city / 45% highway · How we calculate

Frequently asked questions

What is the Porsche Targa's gas mileage by year?

EPA combined ratings for the Porsche Targa run 19 MPG across model years 2003 to 2005. The latest year, 2005, is rated 19 MPG.

Which Porsche Targa model year has the best gas mileage?

The 2005 Porsche Targa Targa 3.6L 6-cyl RWD has the highest combined rating since 2003, at 19 MPG.

How much does a Porsche Targa cost to fuel per year?

For MY2005, EPA-rated configurations cost $4,230 a year to fuel, driving 15,000 miles at premium gasoline $5.36/gal (U.S. average, Sep 2026). The most efficient one costs $4,230.

Has the Porsche Targa's fuel economy improved over time?

Not much. The most efficient configuration is rated 19 MPG in both 2003 and 2005.