The 2010 Maserati Granturismo-Convertible has 32 valves.
The 2011 Maserati GranTurismo has 32 valves.
The 2008 Maserati GranTurismo has 32 valves.
The 2013 Maserati GranTurismo has 32 valves.
The 2014 Maserati GranTurismo has 32 valves.
The 2012 Maserati GranTurismo has 32 valves.
The 2009 Maserati GranTurismo has 32 valves.
The 2012 Maserati Granturismo-Convertible has 32 valves.
The 2011 Maserati Granturismo-Convertible has 32 valves.
The 2013 Maserati Granturismo-Convertible has 32 valves.
The 2014 Maserati Granturismo-Convertible has 32 valves.
The 2010 Maserati GranTurismo's engine produces 405 hp @ 7100 rpm.