- Plug-in hybrid
- Small cars
- MY2014–2020
BMW i8 MPG & Fuel Cost by Year
6 model years · 2014–2020
15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)
BMW i8 fuel economy at a glance
EPA has rated the BMW i8 for 6 model years, 2014 to 2020. Across those years its combined rating runs 27–28 MPG. The latest model year, 2020, has 2 configurations rated 27 MPG combined and costing $2,280 a year to fuel at premium gasoline $5.36/gal (U.S. average, Sep 2026). The most efficient configuration on record since 2014 is the 2017 i8 1.5L 3-cyl turbo AWD, at 28 MPG.
BMW i8 MPG by year
Costs use the current EIA price set and 15,000 miles a year for every year, so years are comparable. Green marks the best year for each powertrain.
BMW i8 generations
1 generations between 2014 and 2020. Open one for the table of every model year and configuration.
2020 powertrain options
On electricity 69 MPGe, with 18 miles of electric range.
See plug-in hybrid configurationsMore BMW models
Frequently asked questions
What is the BMW i8's gas mileage by year?
EPA combined ratings for the BMW i8 run 27–28 MPG across model years 2014 to 2020. The latest year, 2020, is rated 27 MPG.
Which BMW i8 model year has the best gas mileage?
The 2017 BMW i8 i8 1.5L 3-cyl turbo AWD has the highest combined rating since 2014, at 28 MPG.
How much does a BMW i8 cost to fuel per year?
For MY2020, EPA-rated configurations cost $2,280 a year to fuel, driving 15,000 miles at premium gasoline $5.36/gal (U.S. average, Sep 2026). The most efficient one costs $2,280.
Has the BMW i8's fuel economy improved over time?
No. The most efficient configuration moved from 28 MPG in 2014 to 27 MPG in 2020, 1 MPG less.
Is there a hybrid, plug-in or electric BMW i8?
Yes. Plug-in hybrid versions are rated from 2014 to 2020 (27–28 MPG).
Which BMW i8 model years have the same ratings?
EPA lists identical ratings as the previous year for 2015, 2020. The generation pages mark those years "same EPA ratings" and point to the year that holds the full table.