2021 head-to-head · Large Car
2021 Hyundai Ioniq vs Subaru Legacy
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 Hyundai Ioniq is the cheaper one to run. Driving 15,000 miles a year with $3.10/gal regular gas, it costs about $788 a year to fuel (59 MPG), versus $1,550 for the 2021 Subaru Legacy (30 MPG). That's roughly $762 a year, or about $3,809 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
- Hyundai Ioniq
- Subaru Legacy
Side by side
| Hyundai Ioniq | Subaru Legacy | |
|---|---|---|
| $788 | Your annual fuel cost | $1,550 |
| 59 MPG | Combined efficiency | 30 MPG |
| 58 MPG | City | 27 MPG |
| 60 MPG | Highway | 35 MPG |
| 96 cu ft | Passenger volume | 106 cu ft |
| 27 cu ft | Cargo volume | 15 cu ft |
| 151 g/mi | Tailpipe CO₂ (g/mi) | 295 g/mi |
| 10/10 | EPA fuel economy score | 6/10 |
| 10/10 | EPA greenhouse gas score | 6/10 |
| Hybrid | Powertrain | Gas |
| Regular gasoline | Fuel | Regular gasoline |
| 1.6L 4-cyl | Engine / motor | 2.5L 4-cyl |
| 6-speed dual-clutch | Transmission | CVT |
| FWD | Drivetrain | AWD |
✓ 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.
Hyundai Ioniq vs Subaru Legacy across model years
- Hyundai Ioniq
- Subaru Legacy
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 Subaru Legacy has more passenger space (106 vs. 96 cu ft); the Hyundai Ioniq has more cargo space (27 vs. 15 cu ft).
Among 27 2021 large cars, the Hyundai Ioniq ranks 2nd and the Subaru Legacy 10th for lowest fuel cost.
The powertrains differ: the Hyundai Ioniq is a full hybrid, while the Subaru Legacy is a conventional gas model.
Frequently asked questions
Which is more fuel-efficient, the 2021 Hyundai Ioniq or the 2021 Subaru Legacy?
Measured by cost to drive, the Hyundai Ioniq. The Hyundai Ioniq is rated 59 MPG combined and the Subaru Legacy 30 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2021 Hyundai Ioniq vs. the Subaru Legacy per year?
At 15,000 miles a year with $3.10/gal regular gas, about $788 for the Hyundai Ioniq and $1,550 for the Subaru Legacy.
Which has more cargo space?
The Hyundai Ioniq, with 27 cu ft of luggage volume versus 15 cu ft (EPA interior volume index).
Hyundai Ioniq vs Subaru Legacy in other years
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