While the M3 CS will be easier to obtain than its two-door sibling, the M4 CSL (1,000 units), it’s not the rarest M3 of the current generation. That honor goes to the M3 Edition 50 Jahre, limited to just 500 units globally with special paint colors but lacking the weight savings and enhanced powertrain offered by the M3 CS.
The M3 CS may still be one of the rare models to wear the Club Sport designation, though. The previous generation (F80 M3 CS was limited to 1,200 units and the M5 CS to approximately 1,000, but both the M4 CS (3,000 units over two years) and M2 CS (2,200 units) were more abundant. BMW has a history of increasing production capacity on special models, however; the 1 Series M Coupe saw its production increase from an initially-planned 2,700 units to 6,309.