The 2004 BMW M3 has double overhead cam (DOHC).
The 2011 BMW M3 has double overhead cam (DOHC).
The 2009 BMW M3 has double overhead cam (DOHC).
The 2012 BMW M3 has double overhead cam (DOHC).
The 2005 BMW M3 has double overhead cam (DOHC).
The 2003 BMW M3 has double overhead cam (DOHC).
The 2001 BMW M3 has double overhead cam (DOHC).
The 2013 BMW M3 has double overhead cam (DOHC).
The 2008 BMW M3 has double overhead cam (DOHC).
The 2010 BMW M3 has double overhead cam (DOHC).
The 2006 BMW M3 has double overhead cam (DOHC).
The 2002 BMW M3 has double overhead cam (DOHC).