The Opel Signum is a family car that was engineered and manufactured under the German automaker Opel within time period of 2003 to 2008. Sold exclusively in the European regions, the Signum was later rebadged and launched in the other parts of UK with the name of Vauxhall Signum. Largely derived from the model of Opel Vectra with longer version of wheelbase and GM Epsilon platform, this car was also popularly known as the Vectra Caravan. 

Designed in a compact and innovative concept, it comes available in large hactchback variety with vertical rear door option. Combining the best of various options such as traditional family cars and the luxurious executive ones, this car makes one of the best vehicles in economic price rate. The launch of this car was actually objected towards winning the various segments of the market in a new dimension. 

It was during the late months of 2008 that the models of Signum and Vectra were replaced and dropped from the present price list of the production, thus implying its discontinuity. The vehicle variation of Open Signum was equipped with different types of engine ranges which was shared and deprived from the Vectra model, including the 1.8 L I4 16V, 2.2 L I4 16V, 2.2 L I4 16V, 2.0 L I4 16V, 1.9 L I4 16V, 2.8 L V6, 3.2 L, 2.0 L I4 16V, 1.9 L I4, and 3.0 L V6. The measurement of Opel Signum was Length 4,636 mm x Width 1,798 mm x Height 1,466 mm and was replaced by the Open Insignia from the year of 2008.