Never had a problem with the torque of the m3 with dct. As someone said its hard enough to keep traction as it is. I do a lot of city driving and never had a problem, and I don't feel like I have to rev the hell out of it to get it moving.
I had a 335i and that engine was falling on its face very quickly and wasnt much fun to drive.
2013 X5 xDrive50i | Carbon Black | M Sport + M Perf, 333M Wheels
Sold: 2012 E92 M3 | Jet Black, Fox Red/Black | DCT, ZCP