The BMW 3 Series fleet will be refreshed in 2012. Prototypes continue to be tested by they are still heavily camouflaged so it does not reveal any important exterior design cues yet. Rumors say that the refreshed 3 Series line will focus on applying EfficientDynamics like low drag aerodynamics, smaller engines, and high-tech electronics, and air curtain that reduces energy consumption. The refreshed line will be available in four and six-cylinder engines. The first one to be launched in 2012 is rumored to be the four door variant.
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