The 2012 Audi TT has double overhead cam (DOHC).
The 2009 Audi TT has double overhead cam (DOHC).
The 2001 Audi TT has double overhead cam (DOHC).
The 2010 Audi TT has double overhead cam (DOHC).
The 2015 Audi TT has double overhead cam (DOHC).
The 2004 Audi TT has double overhead cam (DOHC).
The 2006 Audi TT has double overhead cam (DOHC).
The 2005 Audi TT has double overhead cam (DOHC).
The 2013 Audi TT has double overhead cam (DOHC).
The 2014 Audi TT has double overhead cam (DOHC).
The 2003 Audi TT has double overhead cam (DOHC).
The 2008 Audi TT has double overhead cam (DOHC).