2020 head-to-head · Large Car

2020 Hyundai Sonata Hybrid vs Kia Optima

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
$894/ year to fuel
52 MPG
✓ Cheaper to run
$1,500/ year to fuel
31 MPG

The 2020 Hyundai Sonata Hybrid is the cheaper one to run. Driving 15,000 miles a year with $3.10/gal regular gas, it costs about $894 a year to fuel (52 MPG), versus $1,500 for the 2020 Kia Optima (31 MPG). That's roughly $606 a year, or about $3,029 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 Sonata Hybrid
  • Kia Optima

Side by side

Hyundai Sonata HybridKia Optima
$894 Your annual fuel cost $1,500
52 MPG Combined efficiency 31 MPG
50 MPG City 27 MPG
54 MPG Highway 37 MPG
105 cu ft Passenger volume 105 cu ft
16 cu ft Cargo volume 16 cu ft
172 g/mi Tailpipe CO₂ (g/mi) 292 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
2.0L 4-cyl Engine / motor 1.6L 4-cyl turbo
6-speed dual-clutch Transmission 7-speed dual-clutch
FWD Drivetrain FWD

✓ 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 Sonata Hybrid vs Kia Optima across model years

  • Hyundai Sonata Hybrid
  • Kia Optima

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

Among 32 2020 large cars, the Hyundai Sonata Hybrid ranks 3rd and the Kia Optima 8th for lowest fuel cost.

The powertrains differ: the Hyundai Sonata Hybrid is a full hybrid, while the Kia Optima is a conventional gas model.

Frequently asked questions

Which is more fuel-efficient, the 2020 Hyundai Sonata Hybrid or the 2020 Kia Optima?

Measured by cost to drive, the Hyundai Sonata Hybrid. The Hyundai Sonata Hybrid is rated 52 MPG combined and the Kia Optima 31 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2020 Hyundai Sonata Hybrid vs. the Kia Optima per year?

At 15,000 miles a year with $3.10/gal regular gas, about $894 for the Hyundai Sonata Hybrid and $1,500 for the Kia Optima.

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