BMW X7 xDrive40ivsPorsche Panamera
BMW X7 xDrive40i leads in City MPG (21 vs 18) and Combined MPG (23 vs 21) and 2 more.
Fuel Economy
21
City MPG
18
25
Highway MPG
25
23
Combined MPG
21
Engine & Drivetrain
6
Cylinders
6
3
Engine Displacement
3
AWD
Drive Type
RWD
Automatic
Transmission
Automatic
Premium Gasoline
Fuel Type
Premium Gasoline
Emissions & Cost
387
CO₂ Emissions
431
3,000
Annual Fuel Cost
3,300
Standard Sport Utility Vehicle 4WD
Vehicle Class
Large Cars
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Data sourced from EPA Fuel Economy Data (Public Domain (U.S. Government)).