Toyota Prius Prime
Fuel economy, running costs and specs by model year
The Toyota Prius Prime appears in this database in 4 model years, from 2017 to 2020, offered with plug-in hybrid power. Combined economy ranges from 54 to 54 MPG across those years, with annual fuel costs of $1,200 to $1,200 at 15,000 miles.
Fuel economy by year
| Year | Combined | Annual fuel | Versions |
|---|---|---|---|
| 2017 | 54-54 MPG | $1,200-$1,200 | 1 |
| 2018 | 54-54 MPG | $1,200-$1,200 | 1 |
| 2019 | 54-54 MPG | $1,200-$1,200 | 1 |
| 2020 | 54-54 MPG | $1,200-$1,200 | 1 |
How it compares
Against the average midsize cars in this dataset (about 32 MPG), the Prius Prime sits roughly 22 MPG above that mark on average, making it a relatively efficient choice for its class.
Five-year fuel cost
Fuelling a Prius Prime for five years at the EPA's 15,000-mile basis costs roughly $6,000 to $6,000, averaging about $6,000 across the versions here. That is the energy bill alone — it excludes insurance, maintenance and depreciation, which for most owners together exceed what goes into the tank.
How it changed over time
Between 2017 and 2020 the Prius Prime's average combined economy improved from about 54 to 54 MPG. Redesigns, new engines and added hybrid or electric versions are usually what move the number, so the year you choose can matter as much as the model.
Best year for fuel economy
The 2020 Prius Prime has the strongest average combined economy in this database at about 54 MPG, while the 2017 is the lowest at about 54 MPG. If running cost is your priority, that is the year to target on the used market; later years may add equipment or safety features instead.
2020 Prius Prime at a glance
| Version | Engine | Fuel | Combined |
|---|---|---|---|
| Prius Prime | 1.8L 4-cyl | Plug-in Hybrid | 54 MPG |
Use the comparison tool to set the Prius Prime against a rival, or go back to all Toyota models.