BMW Z4 M40ivsPorsche Panamera 4
BMW Z4 M40i leads in City MPG (23 vs 18) and Highway MPG (29 vs 25) and 3 more.
Fuel Economy
23
City MPG
18
29
Highway MPG
25
25
Combined MPG
21
Engine & Drivetrain
6
Cylinders
6
3
Engine Displacement
3
RWD
Drive Type
AWD
Automatic
Transmission
Automatic
Premium Gasoline
Fuel Type
Premium Gasoline
Emissions & Cost
346
CO₂ Emissions
425
2,750
Annual Fuel Cost
3,300
Two Seaters
Vehicle Class
Large Cars
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Data sourced from EPA Fuel Economy Data (Public Domain (U.S. Government)).