2021 head-to-head · Two-Seater
2021 Mazda MX-5 vs Nissan 370z
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
RWD · 3.7L 6-cyl · 6-speed manual · 20 MPG
The 2021 Mazda MX-5 is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $1,975 a year to fuel (30 MPG), versus $2,962 for the 2021 Nissan 370z (20 MPG). That's roughly $987 a year, or about $4,937 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
- Nissan 370z
Side by side
| Mazda MX-5 | Nissan 370z | |
|---|---|---|
| $1,975 | Your annual fuel cost | $2,962 |
| 30 MPG | Combined efficiency | 20 MPG |
| 26 MPG | City | 17 MPG |
| 35 MPG | Highway | 26 MPG |
| 299 g/mi | Tailpipe CO₂ (g/mi) | 445 g/mi |
| 6/10 | EPA fuel economy score | 4/10 |
| 6/10 | EPA greenhouse gas score | 4/10 |
| Gas | Powertrain | Gas |
| Premium gasoline | Fuel | Premium gasoline |
| 2.0L 4-cyl | Engine / motor | 3.7L 6-cyl |
| 6-speed automatic | Transmission | 6-speed manual |
| 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 Nissan 370z across model years
- Mazda MX-5
- Nissan 370z
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 27 2021 two-seaters, the Mazda MX-5 ranks 2nd and the Nissan 370z 10th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2021 Mazda MX-5 or the 2021 Nissan 370z?
Measured by cost to drive, the Mazda MX-5. The Mazda MX-5 is rated 30 MPG combined and the Nissan 370z 20 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2021 Mazda MX-5 vs. the Nissan 370z per year?
At 15,000 miles a year with $3.95/gal premium gas, about $1,975 for the Mazda MX-5 and $2,962 for the Nissan 370z.
Mazda MX-5 vs Nissan 370z in other years
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