No, M1 Coupé is M1 so as M3 Coupé, Convertible, Sedan or even eventual Wagon are M3. M2 makes sense. Maybe when the new 1 Series comes out, the "old" 1 Coupé and Convertible will maybe be called 2 Series. The X3 naming also changed from X3 3.0d to X3 xDrive30d.
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