standard, while on other models they were an optional extra. All Quattroporte models were fitted with a limited slip differential. Engines The V8 engines of the fifth generation of the Quattroporte belonged to the Ferrari-Maserati F136 family; they had aluminium-silicon alloy block and heads, a crossplane crankshaft, four valves per cylinder driven by two overhead camshafts per bank and continuous variable valve timing on the intake side. F136S 4.2-litre engines in DuoSelect equipped cars used a dry sump lubrication system; F136UC 4.2-litre engines on automatic cars were converted to use a wet sump oiling system, as did the later 4.7-litre, codenamed F136Y. Coachbuilders Bellagio Fastback Touring In 2008, at the Concorso d'Eleganza Villa d'Este, Milanese coachbuilder Carrozzeria Touring Superleggera unveiled the Maserati Bellagio Fastback Touring, a 5-door hatchback built on the chassis of the fifth generation of the Quattroporte. In May 2013 a Bellagio Fastback was auctioned by RM Auctions at their Villa Erba event, in occasion of Concorso d'Eleganza Villa d'Este; the price was €117,600. According to the auction house, four examples have been built by Carrozzeria Touring. A Maserati Quattroporte V has also been used as a hearse as seen on the funeral of the Polish president Lech Kaczynski in 2010. Motorsport In 2009 Swiss Team announced the development of "Maserati Quattroporte EVO" International Superstars Series racing cars based on the 4.2-litre Quattroporte M139, to be piloted by Andrea Chiesa. Swiss Team fielded the cars in the 2009, 2010, 2011 and 2012 seasons; Italian racing driver Andrea Bertolini won the 2011 championship season at the wheel of a Swiss Team Quattroporte. Quattroporte VI (M156, 2013–present) The current and sixth-generation of the Quattroporte was introduced in early 2013. With a wheelbase it is a considerably larger vehicle than any of its predecessors, to set itself apart from the smaller Ghibli, which shares its underpinnings. Engine choice includes twin-turbocharged V6 and V8 petrol engines, as well as a turbodiesel V6. History Development The new Quattroporte was designed at a special Maserati-only department within the Fiat Group Centro Stile design centre, under the guidance of ex-Pininfarina designer Lorenzo Ramaciotti. Drivetrains, platform, suspension, and body elements such as the front doors are common to the Quattroporte and the smaller Ghibli saloon, which sits on a shorter wheelbase. The Quattroporte is manufactured at the Officine Maserati Grugliasco plant in Grugliasco, near Turin, dedicated to Giovanni Agnelli; this former Bertone plant was acquired by