BMW 840i Gran CoupevsMazda MX-5
Mazda MX-5 leads in City MPG (26 vs 21) and Highway MPG (34 vs 29) and 3 more.
Fuel Economy
21
City MPG
26
29
Highway MPG
34
24
Combined MPG
29
Engine & Drivetrain
6
Cylinders
4
3
Engine Displacement
2
RWD
Drive Type
RWD
Automatic
Transmission
Manual
Premium Gasoline
Fuel Type
Premium Gasoline
Emissions & Cost
368
CO₂ Emissions
305
2,900
Annual Fuel Cost
2,400
Midsize Cars
Vehicle Class
Two Seaters
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Data sourced from EPA Fuel Economy Data (Public Domain (U.S. Government)).