Hyundai Sonata vs Toyota Mirai: Specs Compared
Also searched as Toyota Mirai vs Hyundai Sonata specs — both orientations show this same side-by-side comparison.
The Toyota Mirai is the more efficient of the two: it reaches 74 mpg combined versus 52 mpg for the Hyundai Sonata, a 22 mpg advantage.
Across 3 measured categories, the Toyota Mirai leads in 3. Figures are EPA test data, not manufacturer claims.
Head-to-head specifications
| Metric | Hyundai Sonata | Toyota Mirai |
|---|---|---|
| Best combined MPG | 52 mpg | 74 mpg ✓ |
| Best city MPG | 50 mpg | 76 mpg ✓ |
| Best highway MPG | 56 mpg | 71 mpg ✓ |
| Lowest annual fuel costEPA estimate at 15,000 miles per year | $1,200 | Not available |
| Lowest CO2 output | 100 g/mi | Not available |
| Engines offered | SIDI; Hybrid, SIDI & PFI, SIDI & PFI; with Stop-Start, SIDI & PFI; Stop-Start | PEFC |
| Transmissions | Automatic (AM-S6), Automatic (AM-S8), Automatic (S8) | Automatic (variable gear ratios) |
| Drivetrains | Front-Wheel Drive, All-Wheel Drive | Rear-Wheel Drive, Front-Wheel Drive |
| Fuel types | Regular, Regular Gas and Electricity | Hydrogen |
| EPA class | Large Cars | Compact Cars |
| Years covered | 2015–2027 | 2016–2026 |
| Configurations on record | 81 | 17 |
Source: EPA fuel economy records via fueleconomy.gov. Best-case values across all recorded configurations for each model.
Hyundai Sonata vs Toyota Mirai dimensions and size
The Toyota Mirai is 2.4 inches longer than the Hyundai Sonata on a wheelbase 3.1 inches longer, and 720.9 lbs heavier. Both clear the roughly 200 inches of usable length in a standard single garage bay.
| Dimension | Hyundai Sonata (2026) | Toyota Mirai (2026) | Difference |
|---|---|---|---|
| Length | 193.3 in | 195.7 in | 2.4 in |
| Width (excl. mirrors) | 73.2 in | 74 in | 0.8 in |
| Height | 56.7 in | 57.9 in | 1.2 in |
| Wheelbase | 111.8 in | 115 in | 3.1 in |
| Curb weight | 3,534 lbs | 4,255 lbs | 721 lbs |
Width excludes mirrors; add 8–12 inches for mirrors out. Figures are for the newest model year on record for each vehicle. See both drawn to scale.
Hyundai Sonata vs Toyota Mirai: what the numbers mean
City and highway economy: the Toyota Mirai leads in both cycles — 76 mpg city and 71 mpg highway against 50 and 56 mpg — so its fuel-efficiency advantage holds whether you commute in traffic or cover long highway miles.
Powertrain choice: the Hyundai Sonata is recorded with 4 distinct engine configurations (SIDI; Hybrid, SIDI & PFI, SIDI & PFI; with Stop-Start), the Toyota Mirai with 1 (PEFC). Across 81 recorded Hyundai Sonata configurations and 17 for the Toyota Mirai, the wider the engine spread the more the real-world fuel efficiency depends on which version you actually buy, so check the specific model year and drivetrain rather than the headline number.
Drivetrain and class: the Hyundai Sonata is offered with Front-Wheel Drive, All-Wheel Drive, the Toyota Mirai with Rear-Wheel Drive, Front-Wheel Drive. All-wheel drive typically costs one to two mpg combined against the same vehicle in front- or rear-wheel drive, which is worth remembering when the gap between these two is small. The EPA classes them as Large Cars and Compact Cars respectively — the class drives the interior volume, cargo space and passenger space each one is measured against.
Sonata vs Mirai: common questions
Which is better on gas, the Hyundai Sonata or the Toyota Mirai?
The Toyota Mirai is the more efficient of the two: it reaches 74 mpg combined versus 52 mpg for the Hyundai Sonata, a 22 mpg advantage.
What engines do the Sonata and Mirai offer?
Hyundai Sonata: SIDI; Hybrid, SIDI & PFI, SIDI & PFI; with Stop-Start, SIDI & PFI; Stop-Start. Toyota Mirai: PEFC.
Are they in the same vehicle class?
The EPA classifies the Hyundai Sonata as Large Cars and the Toyota Mirai as Compact Cars, so they aren't a like-for-like match on size.
More Sonata comparisons
More Mirai comparisons
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