The Opel Signum, a five-door mid-size sedan with hatchback was officially in 2003 on the market. The dynamically designed Opel Signum presents itself as a blend of sedan, wagon and van. The innovative FlexSpace system the rear seats of the Opel Signum can move or fold variable, depending on whether more space in the boot or legroom for the passengers want. As part of the continuous model refinement of the Opel Signum received during the current model year 2006 a number of innovations: In the field of drive units the already known from the Zafira 1.8-liter ECOTEC engine replaced with 140 hp and five-speed manual, the existing 122 PS version, In Opel Signum Sport of strengthened to 250 hp 2.8 V6 Turbo S makes ( previously 230 hp ) for even speedier ride.Externally visible is the Opel Signum 2006 vintage at the completely redesigned front section with cylindrical, chrome-colored lamp units behind clear glass. The grill now dominates a wide chrome bar with large Opel emblem. New interior materials ensure a high-quality appearance. The Opel Signum is available in variants Signum, Edition, Sport and Cosmo. Common to all versions is the standard IDS chassis system. For the Opel Signum Five petrol engines and four CDTI common - rail diesel available. All diesel models of the Opel Signum are fitted as standard with a maintenance-free diesel particulate filter.