Against 145 other V8 cars rated 2024–2026, the AMG GT beats their 16.5 mpg average by 3 mpg, about $358 a year. Averaged over the years each was sold, the most economical engine since 2016, the 2L 4-cyl Hybrid (2025–2026), does 22 mpg and the thirstiest, the 4L 8-cyl (2016–2026), 17.6: $437 a year apart.
Every Mercedes-Benz AMG GT engine, compared
Yearly cost assumes 12,000 miles at $3.20 a gallon.
| Engine | Combined | City / Highway | Years | Fuel per year |
|---|---|---|---|---|
| 2L 4-cyl Hybrid | 19 / 27 | 2025–2026 | $1,745 | |
| 3L 6-cyl Hybrid | 19.2 / 24.3 | 2019–2024 | $1,811 | |
| 4L 8-cyl | 15.6 / 21.5 | 2016–2026 | $2,182 |
What that actually costs
Against its rivals in the same model years, the Aston Martin Vantage gets 18 mpg, the Porsche 718 Cayman 22.5 mpg and the Porsche 718 Boxster 22.5 mpg, next to 19.5 mpg for the 2026 AMG GT.
| Measure | Value |
|---|---|
| Cost per mile (2026) | $0.164 |
| Fuel per year | $1,969 |
| Fuel over five years | $9,845 |
| Against other V8 cars, 2024–2026 | −$358 a year |
| EPA's own estimate | $4,042 a year |
City or highway — who is this car for
The 2026 Mercedes-Benz AMG GT gives up 7 mpg in town: 24 on the highway against 17 in the city, $659 a year if every mile were city driving.
| Measure | Value | Reading |
|---|---|---|
| City (2026) | 17 mpg | $2,259 a year if you only drive in town |
| Highway | 24 mpg | $1,600 a year if you mostly commute |
| Gap | +7 mpg (41%) | Wide — this car dislikes traffic |
How the AMG GT changed over the years
The AMG GT peaked in 2022 at 21 mpg (19 city, 25 highway) and was at its thirstiest in 2018 at 18 — 3 mpg apart, or $304 a year in fuel between buying one year and the other. The 2026 car does 19.5.
| Model year | Combined | City / Highway | Engines offered | Fuel per year |
|---|---|---|---|---|
| 2026 | 17 / 24 | 2 | $1,969 | |
| 2025 | 17 / 24 | 2 | $1,969 | |
| 2024 | 17 / 22.5 | 2 | $2,021 | |
| 2023 | 17 / 22.5 | 2 | $2,021 | |
| 2022 | 19 / 25 | 1 | $1,829 | |
| 2021 | 18 / 23 | 2 | $1,920 | |
| 2020 | 17.5 / 23 | 2 | $1,969 | |
| 2019 | 17.5 / 23 | 2 | $1,969 | |
| 2018 | 16 / 22 | 1 | $2,133 | |
| 2017 | 16 / 22 | 1 | $2,133 | |
| 2016 | 16 / 22 | 1 | $2,133 |
MPG is a number. Dollars per year is the answer.
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How we count
This page rests on 18 EPA ratings of the Mercedes-Benz AMG GT — 3 engines across 2016–2026. The mileage is EPA's laboratory figure, unchanged; the yearly bill is ours, at 12,000 miles and $3.20 a gallon, against EPA's own estimate of $4,042. Full method.
Frequently asked questions
What mpg does the 2026 Mercedes-Benz AMG GT get?
19.5 mpg combined, 17 city and 24 highway, per EPA; its 2 versions that year range from 17 to 22. Across every year since 2016 the AMG GT has averaged 19.3 mpg.
Is the 2026 AMG GT more efficient than the 2025?
About the same: 19.5 against 19.5 mpg combined.
Which AMG GT year has the best gas mileage?
The 2022, at 21 mpg combined (19 city, 25 highway).
Does the AMG GT get better gas mileage than the Aston Martin Vantage?
Yes: 19.5 mpg for the 2026 AMG GT against 18 for the 2026 Aston Martin Vantage, about $164 a year less to run.
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