The Alfa Romeo 159 (Type 939) is a compact-executive saloon and estate produced from 2004 to 2011, representing the direct successor to the Alfa Romeo 156 in the brand's passenger car lineup. Built on a platform shared with the Opel Vectra C and Saab 9-3, the 159 was developed under the broader GM-Fiat alliance of the period, giving it a wider, more substantial footprint than the 156 it replaced. The car was publicly introduced at the 2005 Geneva Motor Show and offered in four-door saloon and five-door estate (Sportwagon) body styles, with a range of petrol and diesel engines including the well-regarded 2.4 JTDm five-cylinder diesel. The 159 is notable for its striking Giorgetto Giugiaro-influenced styling and for maintaining rear-wheel-drive-biased proportions despite its front-drive and available Q4 all-wheel-drive mechanical layout.