BMW Z4

Fuel economy, running costs and specs by model year

The BMW Z4 appears in this database in 3 model years, from 2016 to 2020, offered with gasoline power. Combined economy ranges from 19 to 28 MPG across those years, with annual fuel costs of $2,850 to $4,200 at 15,000 miles.

Fuel economy by year

How it compares

Against the average two seaters in this dataset (about 23 MPG), the Z4 sits roughly 1 MPG above that mark on average, making it a relatively efficient choice for its class.

Five-year fuel cost

Fuelling a Z4 for five years at the EPA's 15,000-mile basis costs roughly $14,250 to $21,000, averaging about $17,625 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.

The range within the range

Economy across the Z4 varies by about 9 MPG between its most and least frugal versions, which run on gasoline. Engine size, turbocharging, drivetrain and even wheel size explain most of that gap, so when you shop a used Z4 check which version you are looking at before comparing its running cost to another car.

How it changed over time

Between 2016 and 2020 the Z4's average combined economy improved from about 22 to 26 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 2019 Z4 has the strongest average combined economy in this database at about 28 MPG, while the 2016 is the lowest at about 22 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 Z4 at a glance

Use the comparison tool to set the Z4 against a rival, or go back to all BMW models.