Amazing thread; have been looking for something with that data for a long time now. I still see a 10% difference. I would not choose the 6MT if I knew it was an afterthought for the car and crippled the vehicle's performance. 10% is a fine penalty for me since 99% of the driving fun I derive from the M3 is spent lazily rowing through the gears enjoying the responsiveness of the car. Plus in real world conditions to 60mph the manual is apparently a tiny bit faster to 60mph than the DCT, considering that the 1-2 shift is nearly instantaneous on the 6MT at redline and MDM provides an excellent and consistent launch.
Anyway, thanks again, bookmarked.