Enjoy...
http://carscoop.blogspot.com/2010/03...46-liters.html
I wonder how much more an M3 Sedan + Dinan Stage 3 engine mods costs compared with a C63 AMG...it may be a C63 killer on the drag-strip while retaining and maybe improving the M3 handling...nice !
EDIT: Oh, sorry, the Dinan engine costs $25k...nevermind