2023 Toyota Mirai Limited: MPG and fuel economy
The 2023 Toyota Mirai Limited is rated by the U.S. Environmental Protection Agency at 65 combined MPG, with 67 MPG in the city and 64 MPG on the highway. That puts it well above the average for cars in the Compact Cars class in the same model year.
This page collects every fuel-economy figure the EPA publishes for the 2023 Toyota Mirai Limited. Below you will find the headline combined, city, and highway MPG, the estimated annual fuel cost at three different driving levels, the tailpipe CO₂ emissions, and a full breakdown of the engine and drivetrain. If you want to know whether this generation got more or less efficient over the years, the year-over-year table further down covers every model year the EPA has rated.
Key takeaways
- Returns 93% better combined MPG than the average car in the Compact Cars class for the 2023 model year (33.7 MPG class average).
- The most efficient car in the Compact Cars class for the 2023 model year is the Porsche Taycan GTS at 83 MPG.
- EPA estimates this car saves around $10,750 in fuel over five years compared with an average new vehicle of the same model year.
Fuel economy at a glance
These are the EPA's official ratings for the 2023 Toyota Mirai Limited. The numbers come from a standardised laboratory test cycle and are the same figures that appear on the window sticker of every new car. Real-world mileage varies with driving style, weather, fuel quality, and how heavily loaded the car is.
Combined MPG is a 55/45 weighted blend of the city and highway test cycles. The EPA uses it as the single number you can compare across the entire dataset, including hybrids and EVs (which use the equivalent MPGe figure).
| Combined MPG | 65 MPG |
| City MPG | 67 MPG |
| Highway MPG | 64 MPG |
| Annual fuel cost | $0 |
| Tailpipe CO₂ | — |
| Fuel type | Hydrogen |
How the 2023 Toyota Mirai Limited compares
The 2023 Toyota Mirai Limited returns 65 combined MPG. Cars in the Compact Cars class for the same model year average 33.7 MPG, which puts this car ahead of the class average by about 93%.
The most efficient car in the Compact Cars class for the 2023 model year is the Porsche Taycan GTS at 83 MPG. The bar chart below puts the Toyota Mirai Limited alongside the class best and the class average so you can see the full picture.
For broader context, the average new car of the 2023 model year (across all classes) returns 33.7 MPG. Larger vehicles pull the all-cars average down, so do not use that figure on its own to judge a small car or a hybrid. The full list of the most efficient cars of the 2023 model year is on its own page.
Year-over-year MPG for the Toyota Mirai Limited
The EPA has rated the Toyota Mirai Limited across 4 model years, from 2021 Toyota Mirai Limited through 2024 Toyota Mirai Limited. The numbers below are the best combined MPG figure the EPA published for each year, which lets you see when the car was at its most efficient and how recent generations stack up.
Combined MPG has stayed in roughly the same range across the run, hovering close to 65 MPG.
| Year | Combined MPG | Open year page |
|---|---|---|
| 2024 | 65 MPG | 2024 Toyota Mirai Limited |
| 2023 | 65 MPG | this page |
| 2022 | 65 MPG | 2022 Toyota Mirai Limited |
| 2021 | 65 MPG | 2021 Toyota Mirai Limited |
Compare against other Compact Cars for 2023
If you are cross-shopping the 2023 Toyota Mirai Limited, the most useful comparison is against the other cars in the Compact Cars class for the same model year. The list below shows the highest-MPG peers, ranked from most to least efficient. Click any of them to open its full page.
The Porsche Taycan GTS leads this group at 83 MPG, 18 MPG ahead of the 2023 Toyota Mirai Limited.
Specifications
Engine, transmission, and drivetrain together drive most of the variation in fuel economy across trims. A larger engine moves the car with less effort but burns more fuel. A turbo lets a small engine punch above its weight, often without much MPG penalty. All-wheel drive adds traction and weight, and usually costs a couple of MPG compared with two-wheel drive of the same engine.
- Vehicle class
- Compact Cars
- Transmission
- Automatic (variable gear ratios)
- Drivetrain
- Rear-Wheel Drive
- Fuel type
- Hydrogen
- Annual petroleum use
- 1.7 barrels per year
Common questions about the 2023 Toyota Mirai Limited
Quick answers to the questions people most often search for when looking up the 2023 Toyota Mirai Limited.
-
Is the 2023 Toyota Mirai Limited fuel efficient?
Yes. The 2023 Toyota Mirai Limited returns 65 combined MPG, which beats the average car in the Compact Cars class for the same model year by about 93%. -
What MPG does the 2023 Toyota Mirai Limited get?
The EPA rates the 2023 Toyota Mirai Limited at 65 combined MPG, 67 MPG in city driving, and 64 MPG on the highway. Real-world numbers depend on your driving style, the weather, and how loaded the car is. -
How much does it cost to fuel a 2023 Toyota Mirai Limited per year?
The EPA estimates an annual fuel cost of $0 for the 2023 Toyota Mirai Limited. That figure assumes 15,000 miles of driving per year, a 55% city and 45% highway split, and the EPA's published average fuel price for the rated fuel grade. -
What fuel does the 2023 Toyota Mirai Limited use?
The EPA lists the 2023 Toyota Mirai Limited as running on hydrogen. Using a different grade than the manufacturer specifies can affect fuel economy and engine longevity. -
Has the Toyota Mirai Limited become more fuel efficient over time?
Combined MPG has stayed close to flat across the run. Both the earliest (2021 Toyota Mirai Limited, 65 MPG) and most recent (2024 Toyota Mirai Limited, 65 MPG) versions sit in the same range. -
What is the difference between the city and highway MPG of the 2023 Toyota Mirai Limited?
City driving returns 67 MPG and highway driving returns 64 MPG. A flat (or city-better) split is the signature of a hybrid or electric drivetrain, where regenerative braking recovers energy that would otherwise be lost in stop-start city traffic. -
What transmission and drivetrain does the 2023 Toyota Mirai Limited have?
The 2023 Toyota Mirai Limited comes with a automatic (variable gear ratios) transmission and rear-wheel drive. -
How does the 2023 Toyota Mirai Limited compare to the best car in its class?
The most efficient car in the Compact Cars class for the 2023 model year is the Porsche Taycan GTS at 83 combined MPG. The Toyota Mirai Limited returns 65 MPG, a gap of 18 MPG. If you are comparing on fuel economy alone, the class leader is worth a look. -
How much does the 2023 Toyota Mirai Limited save on fuel compared to an average car?
The EPA estimates that over five years, the 2023 Toyota Mirai Limited will save you about $10,750 in fuel compared with an average new vehicle of the same model year. That figure uses the same 15,000 mile per year and EPA fuel-price assumption as the annual fuel cost. -
How much petroleum does the 2023 Toyota Mirai Limited use per year?
The EPA estimates the 2023 Toyota Mirai Limited consumes about 1.7 barrels of petroleum per year, based on the standard 15,000 miles of driving. A barrel is 42 U.S. gallons of crude oil, which is refined into gasoline plus other products.
Source: U.S. EPA fuel economy dataset. Annual fuel cost figures assume 15,000 miles of driving per year and a 55% city, 45% highway split. Real-world mileage varies with driving conditions, vehicle maintenance, fuel quality, and driver behaviour.