2018 Hyundai Ioniq
Fuel economy, running costs, emissions and safety · from U.S. EPA and NHTSA data
The 2018 Hyundai Ioniq is sold in the U.S. with electric and hybrid and plug-in hybrid power. The EPA lists 4 configurations for this model year, with combined economy from 52 to 136 MPGe and an estimated annual fuel cost of $550 to $1,250 at 15,000 miles.
Key numbers
| Model year | 2018 |
|---|---|
| Vehicle class | Large Cars |
| Fuel type(s) | Electric, Hybrid, Plug-in Hybrid |
| Combined economy | 52-136 MPGe |
| Best / worst combined | 136 / 52 MPGe |
| Annual fuel cost | $550-$1,250 |
| EPA range | 124-630 mi |
| 240V charge time | 2.3-4.0 h |
| Tailpipe CO₂ | 75-163 g/mi |
| EPA smog rating | 7-10 / 10 |
What it costs to fuel
Across its configurations, the 2018 Ioniq costs about $550 to $1,250 a year to fuel at the EPA's 15,000-mile basis, averaging roughly $1,025. Over five years that is about $5,125 in fuel alone before maintenance, insurance and depreciation — which is why the running cost, not just the price, decides what a car really costs.
Relative to an average new vehicle, the most efficient Ioniq configuration saves about $8,750 in fuel over five years; less efficient versions spend more.
For context, the average combined economy of large cars in this dataset is about 29 MPGe. The Ioniq sits roughly 65 MPGe above that mark at its midpoint, making it more efficient than average for its EPA class.
Configurations and fuel economy
| Version | Engine | Drive | Trans | Fuel | Combined | Annual fuel |
|---|---|---|---|---|---|---|
| Ioniq Electric | electric | Front-Wheel | Automatic | Electric | 136 MPGe | $550 |
| Ioniq Blue | 1.6L 4-cyl | Front-Wheel | Automatic | Hybrid | 58 MPGe | $1,100 |
| Ioniq | 1.6L 4-cyl | Front-Wheel | Automatic | Hybrid | 55 MPGe | $1,200 |
| Ioniq Plug-in Hybrid | 1.6L 4-cyl | Front-Wheel | Automatic | Plug-in Hybrid | 52 MPGe | $1,250 |
Emissions, safety and size
The 2018 Ioniq records tailpipe CO₂ of 75-163 g/mi, an EPA smog rating of 7-10 out of 10, and an EPA electric range of 124 to 630 miles when running on battery. The EPA classifies it as large cars.
Compare this car
Open the comparison tool to line this 2018 Ioniq up against any other vehicle in the database, or jump to other years and trims from the 2018 Hyundai Ioniq overview.
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Data: U.S. EPA FuelEconomy.gov (public domain) and NHTSA SafetyRatings. Figures are EPA estimates; real-world results vary.