To Levi's point: BMW makes an F12 and F12M, so why wouldn't they also produce an F33 and F83? Having both an M4 convertible and several 4-series convertibles (428i, 435i, M440i, etc) adheres nicely to BMW's aggressive and granular market segmentation strategy.
'09 E92 M3: Space Gray, Black, Carbon Leather | ZTP 2MK ZPP 2MT 6FL | link 1 / link 2
Mods: M Performance exhaust | ZCP retrofit | Euro airbox | GTS DCT flash | 240J ECU flash | LCI Euro taillights | CRT lip | OEM alarm retrofit | Space Gray bumper plugs | BMW Performance: Mk. II spoiler / Mk. II non-electronic steering wheel / mirror caps / front grilles / side gills / intake louvers / emblem