2025 BMW 3 Series MPG & Gas Mileage Data
Change vehicle 1 of 271
55%
City
45%
Highway
Cost to Drive
$144/mo
3 Series M340i
vs
$139/mo
Avg. Car
Monthly estimates based on costs in Mississippi
Est. Combined City/Hwy
30 MPG
27 City
33 Highway
Tailpipe Emissions
4.9 tons CO2
3 Series M340i
vs
5.3 tons
Avg. Midsize Car
Yearly estimate based on your driving miles.
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