2025 head-to-head · Two-Seater
2025 Mazda MX-5 vs Porsche 718
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
The 2025 Mazda MX-5 is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,043 a year to fuel (29 MPG), versus $2,469 for the 2025 Porsche 718 (24 MPG). That's roughly $426 a year, or about $2,128 over five years.
Your numbers
Change these to match your driving and local prices. Every figure and chart on this page updates.
Fuel cost over 10 years
- Mazda MX-5
- Porsche 718
Side by side
| Mazda MX-5 | Porsche 718 | |
|---|---|---|
| $2,043 | Your annual fuel cost | $2,469 |
| 29 MPG | Combined efficiency | 24 MPG |
| 26 MPG | City | 21 MPG |
| 34 MPG | Highway | 27 MPG |
| 305 g/mi | Tailpipe CO₂ (g/mi) | 375 g/mi |
| 6/10 | EPA fuel economy score | 5/10 |
| 6/10 | EPA greenhouse gas score | 5/10 |
| Gas | Powertrain | Gas |
| Premium gasoline | Fuel | Premium gasoline |
| 2.0L 4-cyl | Engine / motor | 2.0L 4-cyl turbo |
| 6-speed manual | Transmission | 7-speed dual-clutch |
| RWD | Drivetrain | RWD |
✓ marks the better value. EPA scores run 1–10 (10 is best). Volumes come from the EPA interior volume index and aren't published for every body style.
Mazda MX-5 vs Porsche 718 across model years
- Mazda MX-5
- Porsche 718
Annual fuel cost of the most efficient configuration of each model year, at your prices. Click a point to open that year.
How they differ
Among 20 2025 two-seaters, the Mazda MX-5 ranks 2nd and the Porsche 718 6th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2025 Mazda MX-5 or the 2025 Porsche 718?
Measured by cost to drive, the Mazda MX-5. The Mazda MX-5 is rated 29 MPG combined and the Porsche 718 24 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2025 Mazda MX-5 vs. the Porsche 718 per year?
At 15,000 miles a year with $3.95/gal premium gas, about $2,043 for the Mazda MX-5 and $2,469 for the Porsche 718.
Mazda MX-5 vs Porsche 718 in other years
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