Porsche 911 GT3 MPG and Fuel Economy
Porsche have been manufacturing models of 911 GT3 for 11 years, with the latest vehicle in 2023 having a combined MPG of 16.
The estimated fuel cost for the 2023 Porsche 911 GT3 is $3,950 per year.
Government regulators have estimated that value based on 15,000 miles driven per year, using regular gasoline, and a split of 55% city driving and 45% highway driving.
💵 Compared to an average vehicle over 5 years, you will spend $10,750 more on fuel driving a 2023 Porsche 911 GT3.
🛢 The Porsche 911 GT3 will consume roughly 19 barrels of petroleum per year, using the standard estimate of 15,000 miles per year.
💨 For every mile driven, the Porsche 911 GT3 will emit 538 grams of CO2, which is about 8,070,000 grams of CO2 per year.
🌳 To help you understand the impact of this, a normal tree will absorb around 21,000 grams of CO2 per year. This means that roughly 385 trees would be needed to offset emissions from the Porsche 911 GT3.
The table below is a complete list of the 11 Porsche 911 GT3 fuel efficiency specifications we have data for.
Click any vehicle link to see a more detailed breakdown of the car, miles per gallon, emissions, and more.
| Vehicle | Combined MPG | Fuel Cost |
|---|---|---|
| 2023 Porsche 911 GT3 | 16 | $3,950 |
| 2022 Porsche 911 GT3 | 16 | $4,600 |
| 2019 Porsche 911 GT3 | 16 | $4,600 |
| 2018 Porsche 911 GT3 | 17 | $4,350 |
| 2016 Porsche 911 GT3 | 17 | $4,350 |
| 2015 Porsche 911 GT3 | 17 | $4,350 |
| 2014 Porsche 911 GT3 | 17 | $4,350 |
| 2011 Porsche 911 GT3 | 16 | $4,600 |
| 2010 Porsche 911 GT3 | 16 | $4,600 |
| 2008 Porsche 911 GT3 | 18 | $4,100 |
| 2007 Porsche 911 GT3 | 18 | $4,100 |
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"Porsche 911 GT3 MPG and Fuel Economy." MPG Buddy. Accessed on January 3, 2026. https://mpgbuddy.com/cars/porsche/911-gt3.
"Porsche 911 GT3 MPG and Fuel Economy." MPG Buddy, https://mpgbuddy.com/cars/porsche/911-gt3. Accessed January 3, 2026.
Porsche 911 GT3 MPG and Fuel Economy. MPG Buddy. Retrieved from https://mpgbuddy.com/cars/porsche/911-gt3.