Porsche PanameravsRolls-Royce Phantom Extended
Porsche Panamera leads in City MPG (18 vs 12) and Highway MPG (25 vs 19) and 3 more.
Fuel Economy
18
City MPG
12
25
Highway MPG
19
21
Combined MPG
14
Engine & Drivetrain
6
Cylinders
12
3
Engine Displacement
7
RWD
Drive Type
RWD
Automatic
Transmission
Automatic
Premium Gasoline
Fuel Type
Premium Gasoline
Emissions & Cost
431
CO₂ Emissions
609
3,300
Annual Fuel Cost
4,950
Large Cars
Vehicle Class
Large Cars
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Data sourced from EPA Fuel Economy Data (Public Domain (U.S. Government)).