rxmd
May contain traces of nut
They could have designed the M8 and M9 with the same thickness body as the classic M's if they would have built a 2-3mm long snout on the lens mount. I've always wondered why they didn't do this, probably they used some standard parts for the shutter mechanism that needed the space. But, it is possible to build a digital M with the same body thickness as a classic film M, if you don't consider the lens mount part of the thickness, I know it could feel like the classic ones. Bob.
The rangefinder pickup mechanism would need (probably minor) modification.
It would look pretty awkward, especially around the lens release button.
Goggled lenses and Visoflexes would no longer work. This is probably the killer.