2018 BMW 430i xDrive Convertible MPG
EPA-rated · verified snapshot 2026-08-30 · Subcompact Cars
The 2018 BMW 430i xDrive Convertible gets 26 MPG combined — 22 city and 32 highway — in its most efficient configuration (2.0L · 4-cyl · Automatic (S8) · All-Wheel Drive).
City22 MPG
Highway32 MPG
$2,900Fuel cost / yr (EPA est.)
343 g/miCO₂
PremiumFuel
$-3,5005-yr fuel cost vs. average vehicle
5 / 10EPA Fuel Economy & GHG score
9 ft³Cargo volume
90 ft³Passenger volume
Where it sits among compact cars (2018)
FAQ
Is 26 MPG good for a compact cars like the 2018 430i xDrive Convertible?
The 2018 430i xDrive Convertible's 26 MPG combined is below the compact cars average of 26.3 MPG for 2018.
How much does it cost to fuel a 2018 430i xDrive Convertible per year?
Based on EPA assumptions (15,000 miles/year), estimated annual fuel cost is $2,900 for the most efficient trim.
What is the city and highway MPG of the 2018 430i xDrive Convertible?
The most efficient trim is rated 22 MPG city and 32 MPG highway.