BMW unveils latest Efficient Dynamics 3- and 4-cylinder gasoline and diesel engines - Green Car Congress
The return of 4 cylinder BMW engines to the US - The BMW Z4 sDrive28i TwinPower Turbo | BimmerFest BMW Forum
New gen 2.0L diesel for BMW 220d Coupe, Active Tourer; coming 3-cylinder diesel - Green Car Congress
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