Maserati unveiled the all-new Quattroporte in 2005, touting it as a midsized luxury sedan that boasted a modern and innovative body style with a wide range of buyer customizable options and features. It was powered by a Ferrari-inspired 4.2-liter V8 engine that was rated at 396 horsepower. While the car carried over to 2006 with no changes, in 2007, the Quattroporte got a new automatic transmission, a redone center console, and an updated V8 engine that was less noisy. Interior hue options were restyled as well during this model year. The 2008 U.S. model did not feature the F1-style DuoSelect clutchless gearbox. Maserati also made various minor changes to trim levels and options, adding the Collezione Cento model to the luxury fleet. In 2009, Maserati offered three trims, including: Base, S and the popular Sport GT S. The carmaker revamped the front and rear lights, adding LED strips, and also introduced a new grille for the front. A new Bose multimedia sound system was added, and various subtle changes were made to the interior options. The 2009 and 2010 models had nominal cosmetic tweaks made and various trim level adjustments. The Quattroporte rolled through 2011, 2012 and 2013 relatively unchanged. In 2014, Maserati launched the newly redesigned Quattroporte, offering a new V6 engine option alongside of the V8 engine option, and introducing all-wheel-drive and a very enticing eight-speed automatic transmission, while also flaunting a roomier interior with updated technology.
They listened to complaints about last years model, and the 2007 Maserati Quattroporte luxury five-passenger sedan is now available with a conventional and smoother-shifting six-speed automatic transmission.