Originally Posted by mapezzul
I wouldn't suggest using past figures to calculate development the E9X cars were built before BMW's massive environmental testing facility which means these cars are seeing less street time during development.
Also, M is working with AG closer to the start of development rather the completion point so M cars can come to market sooner, like AMG. The F80 is rumored to nearly be complete and many of those parts just needed minor tweaks to work with the F82 (Styling and sheet metal aside).
All true, but as I pointed out earlier, with no F32 until mid to late 2013, the ///M version needs a bit of time after that intro to debut. So 2014 must still be considered the most legitimate timeframe. Same situation occurred with the F10 M5 and F12/13 M6.