BMW 840i ConvertiblevsBMW X3 xDrive30
BMW X3 xDrive30 leads in City MPG (27 vs 21) and Highway MPG (33 vs 29) and 3 more.
Fuel Economy
21
City MPG
27
29
Highway MPG
33
24
Combined MPG
29
Engine & Drivetrain
6
Cylinders
4
3
Engine Displacement
2
RWD
Drive Type
AWD
Automatic
Transmission
Automatic
Premium Gasoline
Fuel Type
Premium Gasoline
Emissions & Cost
368
CO₂ Emissions
299
2,900
Annual Fuel Cost
2,400
Subcompact Cars
Vehicle Class
Small Sport Utility Vehicle 4WD
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Data sourced from EPA Fuel Economy Data (Public Domain (U.S. Government)).