The 2008 BMW M6 has 40 valves.
The 2004 Audi A8 has 40 valves.
The 2007 Audi S8 has 40 valves.
The 2007 BMW M6 has 40 valves.
The 2005 Audi S4 has 40 valves.
The 2010 Audi S6 has 40 valves.
The 2003 Audi S6 has 40 valves.
The 2009 BMW M6 has 40 valves.
The 2006 BMW M6 has 40 valves.
The 2004 Audi S4 has 40 valves.
The 2008 Audi S8 has 40 valves.
The 2006 Lamborghini Gallardo has 40 valves.