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2003 Porsche Carrera GT-1
Shown: 2003 Porsche Carrera GT-1. Photo: naeem mayet, CC BY 2.0, via Wikimedia Commons
  • Gas
  • Two-seaters
  • MY2004–2005

Porsche Carrera GT MPG & Fuel Cost by Year

2 model years · 2004–2005

11 MPG
Combined
9 MPG
City
15 MPG
Highway
Annual cost · MY2005 Carrera GT 5.7L 10-cyl RWD
$7,310

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

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Porsche Carrera GT fuel economy at a glance

EPA has rated the Porsche Carrera GT for 2 model years, 2004 to 2005. Across those years its combined rating runs 11 MPG. The latest model year, 2005, has 1 configuration rated 11 MPG combined and costing $7,310 a year to fuel at premium gasoline $5.36/gal (U.S. average, Sep 2026). The most efficient configuration on record since 2004 is the 2005 Carrera GT 5.7L 10-cyl RWD, at 11 MPG.

Porsche Carrera GT MPG by year

1012 20042005 Gas 1012 20042005 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 Carrera GT: combined fuel economy and annual fuel cost for each model year, grouped by generation
Year Gas (MPG) $/yr
2004-2005 (2004) Generation page
2005 11 $7,310
2004 11 $7,310

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 Carrera GT generations

1 generations between 2004 and 2005. Open one for the table of every model year and configuration.

2005 powertrain options

Gas · 5.7L
Combined
11 MPG
Per year
$7,310
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 Carrera GT's gas mileage by year?

EPA combined ratings for the Porsche Carrera GT run 11 MPG across model years 2004 to 2005. The latest year, 2005, is rated 11 MPG.

Which Porsche Carrera GT model year has the best gas mileage?

The 2005 Porsche Carrera GT Carrera GT 5.7L 10-cyl RWD has the highest combined rating since 2004, at 11 MPG.

How much does a Porsche Carrera GT cost to fuel per year?

For MY2005, EPA-rated configurations cost $7,310 a year to fuel, driving 15,000 miles at premium gasoline $5.36/gal (U.S. average, Sep 2026). The most efficient one costs $7,310.

Has the Porsche Carrera GT's fuel economy improved over time?

Not much. The most efficient configuration is rated 11 MPG in both 2004 and 2005.

Which Porsche Carrera GT model years have the same ratings?

EPA lists identical ratings as the previous year for 2005. The generation pages mark those years "same EPA ratings" and point to the year that holds the full table.