2021 head-to-head · Compact Car
2021 Mazda CX-3 vs Toyota Mirai
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 2021 Mazda CX-3 is the cheaper one to run. Driving 15,000 miles a year with $3.10/gal regular gas and $36.00/kg hydrogen, it costs about $1,500 a year to fuel (31 MPG), versus $7,297 for the 2021 Toyota Mirai (74 MPGe). That's roughly $5,797 a year, or about $28,986 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 CX-3
- Toyota Mirai
Side by side
| Mazda CX-3 | Toyota Mirai | |
|---|---|---|
| $1,500 | Your annual fuel cost | $7,297 |
| 31 MPG | Combined efficiency | 74 MPGe |
| 29 MPG | City | 76 MPGe |
| 34 MPG | Highway | 71 MPGe |
| — | Driving range | 402 mi |
| 88 cu ft | Passenger volume | 93 cu ft |
| 16 cu ft | Cargo volume | 10 cu ft |
| 289 g/mi | Tailpipe CO₂ (g/mi) | 0 g/mi |
| 7/10 | EPA fuel economy score | 10/10 |
| 7/10 | EPA greenhouse gas score | 10/10 |
| Gas | Powertrain | Fuel cell |
| Regular gasoline | Fuel | Hydrogen |
| 2.0L 4-cyl | Engine / motor | Electric motor (134 kW) |
| 6-speed automatic | Transmission | CVT |
| FWD | 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 CX-3 vs Toyota Mirai across model years
- Mazda CX-3
- Toyota Mirai
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
Per EPA interior volume figures, the Toyota Mirai has more passenger space (93 vs. 88 cu ft); the Mazda CX-3 has more cargo space (16 vs. 10 cu ft).
Among 37 2021 compact cars, the Mazda CX-3 ranks 14th and the Toyota Mirai 37th for lowest fuel cost.
The powertrains differ: the Mazda CX-3 is a conventional gas model, while the Toyota Mirai is a hydrogen fuel-cell vehicle.
Frequently asked questions
Which is more fuel-efficient, the 2021 Mazda CX-3 or the 2021 Toyota Mirai?
Measured by cost to drive, the Mazda CX-3. The Mazda CX-3 is rated 31 MPG combined and the Toyota Mirai 74 MPGe (EPA, most efficient configuration of each).
How much does it cost to fuel the 2021 Mazda CX-3 vs. the Toyota Mirai per year?
At 15,000 miles a year with $3.10/gal regular gas and $36.00/kg hydrogen, about $1,500 for the Mazda CX-3 and $7,297 for the Toyota Mirai.
Which has more cargo space?
The Mazda CX-3, with 16 cu ft of luggage volume versus 10 cu ft (EPA interior volume index).
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