Hyundai Ioniq 6 vs Nissan LEAF: Specs Compared
Also searched as Nissan LEAF vs Hyundai Ioniq 6 specs — both orientations show this same side-by-side comparison.
The Hyundai Ioniq 6 is the more efficient of the two: it reaches 140 mpg combined versus 121 mpg for the Nissan LEAF, a 19 mpg advantage and costs about $100 less per year to fuel.
Across 4 measured categories, the Hyundai Ioniq 6 leads in 4. Figures are EPA test data, not manufacturer claims.
2023–2027
Hyundai Ioniq 6
Midsize Cars · 16 configurations
Head-to-head specifications
| Metric | Hyundai Ioniq 6 | Nissan LEAF |
|---|---|---|
| Best combined MPG | 140 mpg ✓ | 121 mpg |
| Best city MPG | 153 mpg ✓ | 131 mpg |
| Best highway MPG | 127 mpg ✓ | 111 mpg |
| Lowest annual fuel costEPA estimate at 15,000 miles per year | $550 ✓ | $650 |
| Lowest CO2 output | Not available | Not available |
| Engines offered | Not available | Not available |
| Transmissions | Automatic (A1) | Automatic (A1) |
| Drivetrains | All-Wheel Drive, Rear-Wheel Drive | Front-Wheel Drive |
| Fuel types | Electricity | Electricity |
| EPA class | Midsize Cars | Midsize Cars |
| Years covered | 2023–2027 | 2015–2026 |
| Configurations on record | 16 | 26 |
Source: EPA fuel economy records via fueleconomy.gov. Best-case values across all recorded configurations for each model.
Hyundai Ioniq 6 vs Nissan LEAF dimensions and size
The Hyundai Ioniq 6 is 17.3 inches longer than the Nissan LEAF on a wheelbase 10.2 inches longer, and 249.1 lbs heavier. Both clear the roughly 200 inches of usable length in a standard single garage bay.
| Dimension | Hyundai Ioniq 6 (2026) | Nissan LEAF (2026) | Difference |
|---|---|---|---|
| Length | 190.9 in | 173.6 in | 17.3 in |
| Width (excl. mirrors) | 74 in | 71.3 in | 2.8 in |
| Height | 59.1 in | 61.4 in | 2.4 in |
| Wheelbase | 116.1 in | 105.9 in | 10.2 in |
| Curb weight | 4,462 lbs | 4,213 lbs | 249 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 Ioniq 6 vs Nissan LEAF: what the numbers mean
Running cost over five years: at the EPA's 15,000-mile-a-year assumption the Hyundai Ioniq 6 burns about $550 of fuel annually against $650 for the Nissan LEAF. That $100 yearly gap compounds to roughly $500 over five years and $800 over eight — often more than the price difference between two trims of the same vehicle, and the single largest running-cost line item separating these two.
City and highway economy: the Hyundai Ioniq 6 leads in both cycles — 153 mpg city and 127 mpg highway against 131 and 111 mpg — so its fuel-efficiency advantage holds whether you commute in traffic or cover long highway miles.
Drivetrain and class: the Hyundai Ioniq 6 is offered with All-Wheel Drive, Rear-Wheel Drive, the Nissan LEAF with 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 Midsize Cars and Midsize Cars respectively — the class drives the interior volume, cargo space and passenger space each one is measured against.
Ioniq 6 vs LEAF: common questions
Which is better on gas, the Hyundai Ioniq 6 or the Nissan LEAF?
The Hyundai Ioniq 6 is the more efficient of the two: it reaches 140 mpg combined versus 121 mpg for the Nissan LEAF, a 19 mpg advantage and costs about $100 less per year to fuel.
Which costs less to run per year?
By EPA estimates at 15,000 miles a year, the Hyundai Ioniq 6 runs about $550 a year in fuel at its most efficient configuration, versus about $650 for the Nissan LEAF — a difference of roughly $100 per year.
What engines do the Ioniq 6 and LEAF offer?
Hyundai Ioniq 6: no engine data on record. Nissan LEAF: no engine data on record.
Are they in the same vehicle class?
Yes — the EPA classifies both the Hyundai Ioniq 6 and the Nissan LEAF as Midsize Cars, so they compete directly.
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