BMW 840i Gran CoupevsBuick Envista (Flex Fuel)
Buick Envista (Flex Fuel) leads in City MPG (28 vs 21) and Highway MPG (32 vs 29) and 3 more.
Fuel Economy
21
City MPG
28
29
Highway MPG
32
24
Combined MPG
30
Engine & Drivetrain
6
Cylinders
3
3
Engine Displacement
1
RWD
Drive Type
FWD
Automatic
Transmission
Automatic
Premium Gasoline
Fuel Type
Regular Gasoline
Emissions & Cost
368
CO₂ Emissions
297
2,900
Annual Fuel Cost
2,000
Midsize Cars
Vehicle Class
Small Station Wagons
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Data sourced from EPA Fuel Economy Data (Public Domain (U.S. Government)).