OP, the Goodyear EfficientGrip ROF tire is often complained about by other forum members. Did you order the mixed summer tire option (225/45 and 255/40)? If so, really surprising BMW is installing these on MSport cars. Its a step down tire when compared to the Bridgestone S001 or even the Pirelli P7.
The EfficientGrip is a summer tire, but NOT a performance summer tire.
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