The 2012 BMW M3 has double overhead cam (DOHC).
The 2012 BMW X5 has double overhead cam (DOHC).
The 2012 BMW X6 has double overhead cam (DOHC).
The 2012 BMW X3 has double overhead cam (DOHC).
The 2012 BMW Z4 has double overhead cam (DOHC).
The 2012 BMW 3-Series has double overhead cam (DOHC).
The 2012 BMW 6-Series has double overhead cam (DOHC).
The 2012 BMW Activehybrid-5 has double overhead cam (DOHC).
The 2012 BMW X6-M has double overhead cam (DOHC).
The 2012 BMW Activehybrid-7 has double overhead cam (DOHC).
The 2012 BMW X5-M has double overhead cam (DOHC).
The 2012 BMW Alpina-B7 has double overhead cam (DOHC).