BMW 840i ConvertiblevsRolls-Royce Spectre (23 inch Wheels)
Rolls-Royce Spectre (23 inch Wheels) leads in City MPG (67 vs 21) and Highway MPG (75 vs 29) and 2 more.
Fuel Economy
21
City MPG
67
29
Highway MPG
75
24
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
368
CO₂ Emissions
N/A
2,900
Annual Fuel Cost
1,100
Subcompact Cars
Vehicle Class
Compact Cars
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Data sourced from EPA Fuel Economy Data (Public Domain (U.S. Government)).