Porsche 911 GT3 MPG by year — every rating on record

The Porsche 911 GT3 has a combined EPA fuel economy rating for 13 model years, from 2007 to 2026. Across those years its best rated version returned 18 mpg (2007) and its thirstiest returned 15 mpg (2024). The EPA record holds 19 configurations for this nameplate, most recently a Two Seaters.

Year-by-year EPA ratings

Where it has stood in its class

Ranked against every other nameplate the EPA filed under the same class that year. The Porsche 911 GT3 placed highest in 2007 at #21 of 27, and lowest in 2019 at #49 of 62. It spent 0 of its 13 ranked years in the top half of its class.

Every configuration on record

All 19 configurations EPA lists for this nameplate, newest first.

How the rating has moved between model years

Comparing the best-rated configuration of each year. 1 of 4 year-over-year steps improved the top rating.

What 911 GT3 fuel costs over a year

At the EPA's 11,500 miles a year, the 2026 Porsche 911 GT3 burns 767 to 767 gallons depending on configuration. Below is what that costs at three pump prices, and how much more the thirstiest configuration costs than the most efficient one.

EPA’s own estimate for the 2026 model year is $5,150 to $5,150 a year in fuel, or $14,500 more than the average new vehicle over five years.

How it compares with other Two Seaters

Across the 263 nameplates EPA classifies as Two Seaters, the median best combined rating is 18 mpg. At 15 mpg the Porsche 911 GT3 is 3 mpg below the median, which is worth about $447 a year at $3.50 a gallon.

• All Two Seaters rankings — every nameplate in the class, best to worst.

Other Porsche nameplates

Every Porsche model compared → — all nameplates ranked by best combined rating, with what each one costs a year.