Today I was in Munich and also saw(and heard!) two M3's and one M4 test cars. They really sound good!
I also saw the most i-cars I have ever seen in one day! I think I saw seven i8's(at different times thru out the day) and about five i3's. A few of the i3's did not have any camo on them.
Seems to me BMW is cranking up the R&D testing on these cars.