Originally Posted by ATS
The history of the MXXX nomenclature that you are referring to, used to mean something. Those were real M cars, such as the fantastic M635 CSI which was sold as the M6 in the US. The new MXXX models are only a marketing exercise.
I was referring more to the E12 and E28 M535i, which were not real M cars. Unlike the M635 CSI which really was an M car.