over the past few years have taken thousands of shots with D4, 6D, Sony A7s, A7R, a6000, S2, M9, M8, M240 and Leica "T"
There is most certainly a Leica "drawing" across the M's and T. The S2 is in another World from all these cameras.
If you should me fairly clean, unsoiled RAWs (ummm DNG's) from these cameras, not some 4M downsample, I can tell you pretty well which is Leica and what is not. S2 images will blow you away. You'll say, "...what camera is that...?"