2026 BMW M340i MPG
Official EPA fuel-economy rating for the 2026 BMW M340i.
EPA combined fuel economy
29MPG
combined (55% city / 45% hwy)
City
26
MPG
Highway
33
MPG
Engine
3L
Cylinders
6
Drive
AllWD
Class
Compact Cars
Running cost
Estimated annual fuel cost
Per year
$1,810
15,000 mi/yr
Fuel used
517 gal
per year
At gas price
$3.50
per gallon
Based on 29 MPG combined and 15,000 miles per year. Adjust for your local gas price and annual mileage.
Other BMW M340i years
FAQ
2026 BMW M340i
- How many MPG does a 2026 BMW M340i get?
- The 2026 BMW M340i gets 29 MPG combined according to the EPA — about 26 MPG in the city and 33 MPG on the highway, depending on trim (2 configurations). Combined MPG is a 55% city / 45% highway blend.
- What is the annual fuel cost for a 2026 BMW M340i?
- Driving 15,000 miles a year at 29 MPG combined, the 2026 BMW M340i uses about 517 gallons of fuel per year — roughly $1,810 at $3.50/gallon. Your real cost varies with local gas prices and driving style.
- What is the difference between city and highway MPG on the 2026 BMW M340i?
- The 2026 BMW M340i returns 26 MPG city and 33 MPG highway. Highway is higher because steady-speed cruising avoids the stop-and-go acceleration that burns fuel in city driving. The 29 MPG combined figure blends the two.
- Is 29 MPG good for a compact cars?
- For a compact cars, 29 MPG combined is about average. Hybrid trims and smaller engines, where offered, return better numbers.
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