Porsche 911 Carrera 4 GTS Cabriolet MPG and Fuel Economy
Porsche have been manufacturing models of 911 Carrera 4 GTS Cabriolet for 7 years, with the latest vehicle in 2023 having a combined MPG of 19.
The estimated fuel cost for the 2023 Porsche 911 Carrera 4 GTS Cabriolet is $3,350 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 $7,750 more on fuel driving a 2023 Porsche 911 Carrera 4 GTS Cabriolet.
🛢 The Porsche 911 Carrera 4 GTS Cabriolet will consume roughly 16 barrels of petroleum per year, using the standard estimate of 15,000 miles per year.
💨 For every mile driven, the Porsche 911 Carrera 4 GTS Cabriolet will emit 463 grams of CO2, which is about 6,945,000 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 331 trees would be needed to offset emissions from the Porsche 911 Carrera 4 GTS Cabriolet.
The table below is a complete list of the 7 Porsche 911 Carrera 4 GTS Cabriolet 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 Carrera 4 GTS Cabriolet | 19 | $3,350 |
| 2022 Porsche 911 Carrera 4 GTS Cabriolet | 19 | $3,900 |
| 2019 Porsche 911 Carrera 4 GTS Cabriolet | 21 | $3,500 |
| 2018 Porsche 911 Carrera 4 GTS Cabriolet | 21 | $3,500 |
| 2017 Porsche 911 Carrera 4 GTS Cabriolet | 21 | $3,500 |
| 2016 Porsche 911 Carrera 4 GTS Cabriolet | 20 | $3,700 |
| 2015 Porsche 911 Carrera 4 GTS Cabriolet | 20 | $3,700 |
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"Porsche 911 Carrera 4 GTS Cabriolet MPG and Fuel Economy." MPG Buddy. Accessed on January 3, 2026. https://mpgbuddy.com/cars/porsche/911-carrera-4-gts-cabriolet.
"Porsche 911 Carrera 4 GTS Cabriolet MPG and Fuel Economy." MPG Buddy, https://mpgbuddy.com/cars/porsche/911-carrera-4-gts-cabriolet. Accessed January 3, 2026.
Porsche 911 Carrera 4 GTS Cabriolet MPG and Fuel Economy. MPG Buddy. Retrieved from https://mpgbuddy.com/cars/porsche/911-carrera-4-gts-cabriolet.