Just found this video, shot on the 18th of July.
This is the most aggressive driving I've seen so far from the new M3. Sounds and looks quite aggressive. Sounds like the engine revs quite high when you hear it approaching. Drift action @ 2:47 mark.
For more M3/M4 info see the
compilation thread and the
homepage features.
EDIT:
New video (23rd of July) of the M4: