Just saw this video... (sorry its only in German)...
2012 M3 DTM specs:
NA V8
weight 1070 kg
480 PS
0-100 kph ~3 secs
tope speed ~300 kph
I also saw that
Joey Hand has joined BMW's DTM squad for 2012 season.
full article here...
http://www.autosport.com/news/report.php/id/96754