The smoke is a bluish white and clearly smells of oil. It comes from both exhaust banks equally. ANd yes it goes away when accelerating. I have had people ride behind me to see if it leaves a smoke trail. MY car does not leave a smoke trail which makes me think it is something other then turbos.
2010 Space Grey 135i- JB4, DCI, VRSF dp's
1995 Avus Blue M3-AA STG1 s/c,meth, quaife 3.46