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| The BMW M3 Sedan and BMW M4 Coupe. |
The CFRP drive shaft in the BMW M3 Sedan, BMW M4 Coupe and BMW M4 Convertible will be gradually replaced by an M specific high-performance steel drives haft from November 2017 onwards.
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| The BMW M3 and M4 CFRP drive shaft. |
The reason why the BMW is going to replace the drive shaft is to meet the future statutory emission requirements. Later, the BMW will install a petrol particulate filter (PPF) into the existing installation space in the BMW M3 Sedan, BMW M4 Coupe and BMW M4 Convertible in major markets.
The BMW says: “The newly developed steel driveshaft has been designed to ensure the superlative performance and handling qualities of the BMW M3/M4 high-performance sports cars remain unaffected.”
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| The BMW M4 Convertible. |
The BMW M4 CS and BMW M4 GTS special edition models won't be affected.
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| The BMW M4 CS. |
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| The BMW M4 GTS. |
