These will fit. I have them on my MS3 now worn on 16" steelies. The fit is tight, but there is adequate clearance and I have had no problems with snow or ice becoming stuck during the snow that we have had so far (1 major storm with 3 feet of snow).
Most people, retailers included, said that this could not be done because of the offset of the rims that was required. However, test fitting showed that it was indeed possible and if you now check out Tire Rack you will find numerous wheel options that include this tire size.
The size is 2.9 off, but other than a small speedometer error there shouldn't be any problems.
Bradicus has provided the rest of the pertinent info.
R