BMW 840i ConvertiblevsBMW M3 Sedan
BMW 840i Convertible leads in City MPG (21 vs 16) and Highway MPG (29 vs 23) and 3 more.
Fuel Economy
21
City MPG
16
29
Highway MPG
23
24
Combined MPG
19
Engine & Drivetrain
6
Cylinders
6
3
Engine Displacement
3
RWD
Drive Type
RWD
Automatic
Transmission
Manual
Premium Gasoline
Fuel Type
Premium Gasoline
Emissions & Cost
368
CO₂ Emissions
472
2,900
Annual Fuel Cost
3,650
Subcompact Cars
Vehicle Class
Compact Cars
Similar Comparisons to BMW 840i Convertible vs BMW M3 Sedan
More comparisons with BMW 840i Convertible
Data sourced from EPA Fuel Economy Data (Public Domain (U.S. Government)).