BMW M3 Competition SedanvsBMW Z4 M40i
BMW Z4 M40i leads in City MPG (23 vs 16) and Highway MPG (29 vs 23) and 3 more.
Fuel Economy
16
City MPG
23
23
Highway MPG
29
19
Combined MPG
25
Engine & Drivetrain
6
Cylinders
6
3
Engine Displacement
3
RWD
Drive Type
RWD
Automatic
Transmission
Automatic
Premium Gasoline
Fuel Type
Premium Gasoline
Emissions & Cost
470
CO₂ Emissions
346
3,650
Annual Fuel Cost
2,750
Compact Cars
Vehicle Class
Two Seaters
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Data sourced from EPA Fuel Economy Data (Public Domain (U.S. Government)).