BMW’s current 4-Series range will undergo its mid-cycle update next year, and as part of the update the high-performance M4 variant will spawn a CS grade. News of the M4 CS was confirmed by BMW M chief Franciscus van Meel in September, and now the first prototypes have been spotted at the Nürburgring and on some of the German racetrack’s…
2025 BMW M4 CS spied for first time
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