Porsche PanameravsRolls-Royce Spectre (23 inch Wheels)
Rolls-Royce Spectre (23 inch Wheels) leads in City MPG (67 vs 18) and Highway MPG (75 vs 25) and 2 more.
Fuel Economy
18
City MPG
67
25
Highway MPG
75
21
Combined MPG
70
Engine & Drivetrain
6
Cylinders
N/A
3
Engine Displacement
N/A
RWD
Drive Type
AWD
Automatic
Transmission
Automatic
Premium Gasoline
Fuel Type
Electricity
Emissions & Cost
431
CO₂ Emissions
N/A
3,300
Annual Fuel Cost
1,100
Large Cars
Vehicle Class
Compact Cars
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Data sourced from EPA Fuel Economy Data (Public Domain (U.S. Government)).