BMW 840i CoupevsGMC Sierra 4WD (Flex Fuel)
BMW 840i Coupe leads in City MPG (21 vs 15) and Highway MPG (29 vs 19) and 3 more.
Fuel Economy
21
City MPG
15
29
Highway MPG
19
24
Combined MPG
17
Engine & Drivetrain
6
Cylinders
8
3
Engine Displacement
5
RWD
Drive Type
4WD
Automatic
Transmission
Automatic
Premium Gasoline
Fuel Type
Regular Gasoline
Emissions & Cost
368
CO₂ Emissions
524
2,900
Annual Fuel Cost
3,500
Subcompact Cars
Vehicle Class
Standard Pickup Trucks 4WD
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Data sourced from EPA Fuel Economy Data (Public Domain (U.S. Government)).