A prototype for an updated version of the BMW M4 has been spotted once more. The changes are part of a mid-cycle update planned for the entire 4-Series range. The cars should be introduced in 2017, as 2018 models. The prototype reveals that the updated M4 will be receiving some of the mods fitted to the high-performance M4 GTS, such as that…
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2018 BMW M4 spy shots (with interior)