Mercedes-Benz AMG GT vs Porsche 718
The Porsche 718 is the more efficient of the two: it reaches 24 mpg combined versus 22 mpg for the Mercedes-Benz AMG GT, a 2 mpg advantage and costs about $300 less per year to fuel.
Across 4 measured categories, the Porsche 718 leads in 4. Figures are EPA test data, not manufacturer claims.
2016–2027
Mercedes-Benz AMG GT
Two Seaters · 67 configurations
Head-to-head specifications
| Metric | Mercedes-Benz AMG GT | Porsche 718 |
|---|---|---|
| Best combined MPG | 22 mpg | 24 mpg ✓ |
| Best city MPG | 20 mpg | 21 mpg ✓ |
| Best highway MPG | 27 mpg | 27 mpg |
| Lowest annual fuel costEPA estimate at 15,000 miles per year | $3,450 | $3,150 ✓ |
| Lowest CO2 output | 397 g/mi | 375 g/mi ✓ |
| Engines offered | SIDI, SIDI; Mild Hybrid, SIDI; PHEV | SIDI |
| Transmissions | Automatic 9-spd, Automatic (AM7), Automatic (AM-S7) | Manual 6-spd, Automatic (AM-S7) |
| Drivetrains | All-Wheel Drive, Rear-Wheel Drive, 4-Wheel Drive | Rear-Wheel Drive |
| Fuel types | Premium, Premium and Electricity | Premium |
| EPA class | Two Seaters | Two Seaters |
| Years covered | 2016–2027 | 2020–2025 |
| Configurations on record | 67 | 91 |
Source: EPA fuel economy records via fueleconomy.gov. Best-case values across all recorded configurations for each model.
AMG GT vs 718: common questions
Which is better on gas, the Mercedes-Benz AMG GT or the Porsche 718?
The Porsche 718 is the more efficient of the two: it reaches 24 mpg combined versus 22 mpg for the Mercedes-Benz AMG GT, a 2 mpg advantage and costs about $300 less per year to fuel.
Which costs less to run per year?
By EPA estimates at 15,000 miles a year, the Porsche 718 runs about $3,150 a year in fuel at its most efficient configuration, versus about $3,450 for the Mercedes-Benz AMG GT — a difference of roughly $300 per year.
What engines do the AMG GT and 718 offer?
Mercedes-Benz AMG GT: SIDI, SIDI; Mild Hybrid, SIDI; PHEV. Porsche 718: SIDI.
Are they in the same vehicle class?
Yes — the EPA classifies both the Mercedes-Benz AMG GT and the Porsche 718 as Two Seaters, so they compete directly.
More AMG GT comparisons
Comparison id: mercedes-benz-amg-gt-vs-porsche-718