Audi RS 6 AvantvsBMW Z4 M40i
BMW Z4 M40i leads in City MPG (23 vs 14) and Highway MPG (29 vs 21) and 3 more.
Fuel Economy
14
City MPG
23
21
Highway MPG
29
16
Combined MPG
25
Engine & Drivetrain
8
Cylinders
6
4
Engine Displacement
3
AWD
Drive Type
RWD
Automatic
Transmission
Automatic
Premium Gasoline
Fuel Type
Premium Gasoline
Emissions & Cost
545
CO₂ Emissions
346
4,300
Annual Fuel Cost
2,750
Midsize Station Wagons
Vehicle Class
Two Seaters
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Data sourced from EPA Fuel Economy Data (Public Domain (U.S. Government)).