The 2013 BMW M6 has double overhead cam (DOHC).
The 2013 BMW Z4 has double overhead cam (DOHC).
The 2013 BMW X3 has double overhead cam (DOHC).
The 2013 BMW M3 has double overhead cam (DOHC).
The 2013 BMW X5 has double overhead cam (DOHC).
The 2013 BMW M5 has double overhead cam (DOHC).
The 2013 BMW X1 has double overhead cam (DOHC).
The 2013 BMW X6 has double overhead cam (DOHC).
The 2013 BMW 7-Series has double overhead cam (DOHC).
The 2013 BMW 5-Series has double overhead cam (DOHC).
The 2013 BMW 1-Series has double overhead cam (DOHC).
The 2013 BMW X5-M has double overhead cam (DOHC).