2020 head-to-head · Large Car

2020 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.

Swap sides
✓ Cheaper to run
$802/ year to fuel
58 MPG
✓ Cheaper to run
$1,550/ year to fuel
30 MPG

The 2020 Hyundai Ioniq is the cheaper one to run. Driving 15,000 miles a year with $3.10/gal regular gas, it costs about $802 a year to fuel (58 MPG), versus $1,550 for the 2020 Subaru Legacy (30 MPG). That's roughly $748 a year, or about $3,741 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 IoniqSubaru Legacy
$802 Your annual fuel cost $1,550
58 MPG Combined efficiency 30 MPG
57 MPG City 27 MPG
59 MPG Highway 35 MPG
96 cu ft Passenger volume 105 cu ft
27 cu ft Cargo volume 15 cu ft
154 g/mi Tailpipe CO₂ (g/mi) 295 g/mi
10/10 EPA fuel economy score 7/10
10/10 EPA greenhouse gas score 7/10
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 (105 vs. 96 cu ft); the Hyundai Ioniq has more cargo space (27 vs. 15 cu ft).

Among 32 2020 large cars, the Hyundai Ioniq ranks 2nd and the Subaru Legacy 9th 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 2020 Hyundai Ioniq or the 2020 Subaru Legacy?

Measured by cost to drive, the Hyundai Ioniq. The Hyundai Ioniq is rated 58 MPG combined and the Subaru Legacy 30 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2020 Hyundai Ioniq vs. the Subaru Legacy per year?

At 15,000 miles a year with $3.10/gal regular gas, about $802 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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