Originally Posted by aajami
I don't think the M4 monikor has been fully baked yet. While it sounds like the F32 and F33 will be called the 4-series, I think there's still some internal debate within BMW about losing the cache that the M3 name carries.
I thought for sure they were going to have to rename it M4 if the 3-series coupe became a 4-series, but M is heading towards becoming it's own sub-brand
, so they could conceivably keep their own numbers.