Toyota Mirai: Which Version Should You Choose?
Choosing between the two Toyota Mirai generations comes down to a clear trade-off. The 1 generation AT, produced from November 2014 through June 2020, is lighter and delivers more torque. The 2 generation AT, produced from November 2020 onward, is more powerful, accelerates faster, has greater ground clearance, and changes from FWD to RWD.
Choosing between the two Toyota Mirai generations comes down to a clear trade-off. The 1 generation AT, produced from November 2014 through June 2020, is lighter and delivers more torque. The 2 generation AT, produced from November 2020 onward, is more powerful, accelerates faster, has greater ground clearance, and changes from FWD to RWD. Both are Sedan models with a 1-speed Automatic transmission, but their listed fuel types differ: Electro for the earlier car and Hydrogen for the later one.
Toyota Mirai generations compared
The Toyota Mirai 1 generation was produced from November 2014 to June 2020. It was offered as a Sedan with one version, named exactly AT. This version has 154 hp, 113 kW, and 335 Nm, together with a 1-speed Automatic transmission and FWD. Its listed engine and fuel type is Electro.
The Toyota Mirai 2 generation has been produced since November 2020. It is also a Sedan with one version, again named exactly AT. To distinguish it from the earlier AT, this version has 182 hp, 133 kW, and 300 Nm. It uses a 1-speed Automatic transmission and RWD, while both the engine type and fuel are listed as Hydrogen.
Moving from 1 generation AT with 154 hp to 2 generation AT with 182 hp adds 28 hp and 20 kW. Torque falls by 35 Nm, from 335 Nm to 300 Nm. The drivetrain changes from FWD to RWD, and the later car gains an independent, spring rear suspension in place of the earlier semi-independent, spring rear suspension.
Toyota Mirai engine specs and specifications
Neither Mirai version has a conventional engine displacement, cylinder count, cylinder layout, or boost specification in the supplied data. Those fields must therefore be treated as not measured rather than interpreted as zero. Power per litre cannot be calculated because displacement is not measured for either version.
| Generation and exact version | Power | Torque | Displacement | Fuel | Cylinders | Cylinder layout | Boost | Gearbox | Drive |
|---|---|---|---|---|---|---|---|---|---|
| 1 generation AT | 154 hp / 113 kW | 335 Nm | not measured | Electro | not measured | not measured | not measured | 1-speed Automatic | FWD |
| 2 generation AT | 182 hp / 133 kW | 300 Nm | not measured | Hydrogen | not measured | not measured | not measured | 1-speed Automatic | RWD |
For a buyer prioritizing maximum listed output, the 2 generation AT is the stronger choice at 182 hp, which is about 18.2% more than the 154 hp of the 1 generation AT. For maximum listed torque, the earlier AT leads with 335 Nm, about 11.7% more than the later version’s 300 Nm.
Toyota Mirai performance and economy
The 1 generation AT accelerates from 0 to 100 km/h in 9.6 seconds and reaches 178 km/h. The 2 generation AT completes the same acceleration measure in 9 seconds and has a top speed of 175 km/h. The later version is therefore 0.6 seconds quicker to 100 km/h, while the earlier version’s listed maximum speed is 3 km/h higher.
| Generation and exact version | 0–100 km/h | Top speed | City consumption | Highway consumption | Combined consumption |
|---|---|---|---|---|---|
| 1 generation AT | 9.6 seconds | 178 km/h | not measured | not measured | not measured |
| 2 generation AT | 9 seconds | 175 km/h | not measured | not measured | not measured |
No city, highway, or combined fuel-consumption figure is measured for either AT version. A Toyota Mirai range comparison is also not possible from the supplied specifications because range is not measured. These missing figures mean the two cars cannot be ranked here by consumption or driving range.
Toyota Mirai weight, clearance, tank, and wheel sizes
The 1 generation AT has a kerb weight of 1,850 kg and a gross weight of 2,180 kg. Its ground clearance is 130 mm. Tank capacity and wheel sizes are not measured. The listed difference between gross and kerb weight is 330 kg.
The 2 generation AT has a kerb weight of 1,900 kg and a gross weight of 2,415 kg. Ground clearance rises to 150 mm, tank capacity is 142, and the listed wheel sizes are 235/55 R19 and 245/45 R20. The difference between gross and kerb weight is 515 kg.
| Generation and exact version | Kerb weight | Gross weight | Ground clearance | Tank | Wheel sizes |
|---|---|---|---|---|---|
| 1 generation AT | 1,850 kg | 2,180 kg | 130 mm | not measured | not measured |
| 2 generation AT | 1,900 kg | 2,415 kg | 150 mm | 142 | 235/55 R19; 245/45 R20 |
The 2 generation AT is 50 kg heavier at kerb weight and 235 kg heavier at gross weight, but it provides 20 mm more ground clearance. Its gross-to-kerb difference is also 185 kg greater.
Weight per horsepower favors the newer car. The 1 generation AT carries approximately 12.01 kg of kerb weight per horsepower, while the 2 generation AT carries approximately 10.44 kg per horsepower. The later version therefore has about 1.57 kg less kerb weight per horsepower despite being heavier overall.
Both cars use independent, spring front suspension and ventilated disc front brakes. At the rear, the 1 generation AT has semi-independent, spring suspension, while its rear brake type is not measured. The 2 generation AT has independent, spring rear suspension and ventilated disc rear brakes.
Which Toyota Mirai version should you buy?
Choose the 1 generation AT if the deciding specifications are lower kerb weight, higher torque, or the slightly higher maximum speed. It weighs 1,850 kg, produces 335 Nm, and reaches 178 km/h. It is also the only choice here with FWD. However, its tank capacity, wheel sizes, rear brake type, and all consumption figures are not measured.
Choose the 2 generation AT if you value horsepower, acceleration, ground clearance, power-to-weight performance, RWD, or the more fully specified chassis. It produces 182 hp, reaches 100 km/h in 9 seconds, offers 150 mm of clearance, and carries approximately 10.44 kg per horsepower. It also has independent, spring suspension and ventilated disc brakes at both ends.
The numbers make the 2 generation AT the more performance-focused all-round choice: its extra 28 hp outweighs a kerb-weight increase of only 50 kg, and it reaches 100 km/h 0.6 seconds sooner. The 1 generation AT remains the better numerical fit when higher torque, lower mass, FWD, or the 3 km/h advantage in maximum speed matters more. Price, availability, reliability, and problems cannot decide the comparison because none of those factors is measured in the supplied data.