2023 head-to-head · Midsize Car
2023 Hyundai Ioniq 6 vs Toyota Prius Prime
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 2023 Hyundai Ioniq 6 is the cheaper one to run. Driving 15,000 miles a year with 18¢/kWh electricity and $3.10/gal regular gas, it costs about $637 a year to fuel (140 MPGe), versus $758 for the 2023 Toyota Prius Prime (127 MPGe + 52 MPG). That's roughly $121 a year, or about $603 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 6
- Toyota Prius Prime
Side by side
| Hyundai Ioniq 6 | Toyota Prius Prime | |
|---|---|---|
| $637 | Your annual fuel cost | $758 |
| 140 MPGe | Combined efficiency | 127 MPGe + 52 MPG |
| 153 MPGe | City | 140 MPGe / 53 MPG |
| 127 MPGe | Highway | 115 MPGe / 51 MPG |
| 23.6 kWh | Electricity use (kWh/100 mi) | 26 kWh |
| 361 mi | Driving range | 600 mi |
| — | All-electric range | 45 mi |
| 105 cu ft | Passenger volume | 91 cu ft |
| 11 cu ft | Cargo volume | 20 cu ft |
| 0 g/mi | Tailpipe CO₂ (g/mi) | 50 g/mi |
| 10/10 | EPA fuel economy score | 10/10 |
| 10/10 | EPA greenhouse gas score | 10/10 |
| 7.5 hrs | Charge time at 240V | 4 hrs |
| Electric | Powertrain | Plug-in hybrid |
| Electricity | Fuel | Regular gas + electricity |
| Electric motor (168 kW) | Engine / motor | 2.0L 4-cyl |
| Single-speed | Transmission | CVT |
| RWD | 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 Ioniq 6 vs Toyota Prius Prime across model years
- Hyundai Ioniq 6
- Toyota Prius Prime
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
The Toyota Prius Prime goes farther between stops: about 600 miles on a full tank and charge, compared with 361 miles for the Hyundai Ioniq 6.
Per EPA interior volume figures, the Hyundai Ioniq 6 has more passenger space (105 vs. 91 cu ft); the Toyota Prius Prime has more cargo space (20 vs. 11 cu ft).
Among 50 2023 midsize cars, the Hyundai Ioniq 6 ranks 1st and the Toyota Prius Prime 3rd for lowest fuel cost.
Because the Hyundai Ioniq 6 is fully electric, it has no tailpipe emissions and its running cost depends almost entirely on your electricity rate. Cheap overnight home charging widens its advantage over the Toyota Prius Prime; relying on DC fast chargers can erase it.
Frequently asked questions
Which is more fuel-efficient, the 2023 Hyundai Ioniq 6 or the 2023 Toyota Prius Prime?
Measured by cost to drive, the Hyundai Ioniq 6. The Hyundai Ioniq 6 is rated 140 MPGe combined and the Toyota Prius Prime 127 MPGe + 52 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2023 Hyundai Ioniq 6 vs. the Toyota Prius Prime per year?
At 15,000 miles a year with 18¢/kWh electricity and $3.10/gal regular gas, about $637 for the Hyundai Ioniq 6 and $758 for the Toyota Prius Prime.
Which has more range?
The Toyota Prius Prime: about 600 miles versus 361 miles.
Which has more cargo space?
The Toyota Prius Prime, with 20 cu ft of luggage volume versus 11 cu ft (EPA interior volume index).
Hyundai Ioniq 6 vs Toyota Prius Prime in other years
More 2023 comparisons
Hyundai Ioniq 6 vs…
Or compare the 2023 Hyundai Ioniq 6 with anything else: