The 2007 Audi A6 runs on regular unleaded.
The 2009 Audi A6 has a continuously variable-speed automatic.
The 2006 Audi A6 has a continuously variable-speed automatic.
The 2011 Audi A6 has a continuously variable-speed automatic.
The 2013 Audi A6 has a continuously variable-speed automatic.
The 2014 Audi A6 has a continuously variable-speed automatic.
The 2005 Audi A6 has a 6-speed shiftable automatic.
The 2008 Audi A6 has a continuously variable-speed automatic.
The 2004 Audi A6 has a continuously variable-speed automatic.
The 2002 Audi A6 has a continuously variable-speed automatic.
The 2012 Audi A6 has a continuously variable-speed automatic.
The 2003 Audi A6 has a continuously variable-speed automatic.