I am having the same issue with my 2011 at 22k. Started noticing about 6-7 months ago. Always on first start up in the morning. I was wondering if these were the signs of a bad fuel bump or the dreaded ICV. I remember when I had my 335 and the HPFP was starting on its way out I began experiencing longer cranks as well. My car runs fine but has made me a bit paranoid.
2011.75 E92 MW/BB extended,ZCP,ZP2,ZCV, IPOD,BMW APPS, Heatedseats,6MT, Edition Black Chrome Grills & Side Gills, CF splitters, CF performance spoiler, CF mirror caps, Turner black anodized pedals, Akropovic Evolution exhaust w/CF tips, Still Undecided on tune, AFE Pro5r, AFE intake scoops, LUX H8
2009 E92 JB/Black 335 xdrive (retired)