Porsche 718 GT4 RS MPG by year — every rating on record
The Porsche 718 GT4 RS has a combined EPA fuel economy rating for 3 model years, from 2023 to 2025. Across those years its best rated version returned 16 mpg (2023) and its thirstiest returned 16 mpg (2023). The EPA record holds 3 configurations for this nameplate, most recently a Two Seaters.
Year-by-year EPA ratings
| Model year | Configurations | Best combined | Worst combined | Class rank that year | Drivetrains | Fuel | EPA class |
|---|---|---|---|---|---|---|---|
| 2023 | 1 | 16 mpg | 16 mpg | #33 of 51 (36th pct) | Rear-Wheel Drive | Premium | Two Seaters |
| 2024 | 1 | 16 mpg | 16 mpg | #24 of 40 (41th pct) | Rear-Wheel Drive | Premium | Two Seaters |
| 2025 | 1 | 16 mpg | 16 mpg | #26 of 37 (31th pct) | Rear-Wheel Drive | Premium | Two Seaters |
Where it has stood in its class
Ranked against every other nameplate the EPA filed under the same class that year. The Porsche 718 GT4 RS placed highest in 2024 at #24 of 40, and lowest in 2023 at #33 of 51. It spent 0 of its 3 ranked years in the top half of its class.
Every configuration on record
All 3 configurations EPA lists for this nameplate, newest first.
| Year | Configuration | Engine detail | City | Highway | Combined | Gallons/yr | Barrels/yr | EPA fuel cost/yr | CO2 g/mi | GHG |
|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | 4.0L 6-cyl Rear-Wheel Drive Automatic (AM-S7) Premium | SIDI, start-stop | 15 | 19 | 16 | 718.8 | 18.6 | $4,850 | 544 | 3/10 |
| 2024 | 4.0L 6-cyl Rear-Wheel Drive Automatic (AM-S7) Premium | SIDI, start-stop | 15 | 19 | 16 | 718.8 | 18.6 | $4,850 | 544 | 3/10 |
| 2023 | 4.0L 6-cyl Rear-Wheel Drive Automatic (AM-S7) Premium | SIDI, start-stop | 15 | 19 | 16 | 718.8 | 18.6 | $4,850 | 544 | 3/10 |
What 718 GT4 RS fuel costs over a year
At the EPA's 11,500 miles a year, the 2025 Porsche 718 GT4 RS burns 719 to 719 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.
| Pump price | Most efficient | Thirstiest | Spread |
|---|---|---|---|
| $3.00/gal | $2,156 | $2,156 | $0 |
| $3.50/gal | $2,516 | $2,516 | $0 |
| $4.00/gal | $2,875 | $2,875 | $0 |
EPA’s own estimate for the 2025 model year is $4,850 to $4,850 a year in fuel, or $13,000 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 16 mpg the Porsche 718 GT4 RS is 2 mpg below the median, which is worth about $280 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.