The VAUXHALL SIGNUM (2003-08) 5DR HATCHBACK 3.0 V6 CDTI DESIGN AUTO REV 05 is a large five-door hatchback with the space and comfort of an executive car. Built as a practical, roomier, more distinctive alternative to conventional family saloons, it sits in a niche part of the UK used-car market. This 3.0-litre V6 CDTI diesel automatic suits motorway journeys and family trips, offering relaxed progress and generous rear-seat room. Its distinctive shape makes it an unusual alternative to mainstream rivals such as the Ford Mondeo and Volkswagen Passat. It suits buyers seeking comfort and space, rather than a compact city car. mycarcheck.com records just four look-ups across three VINs, a small snapshot. Average private-sale valuation was £1,100; mileage averaged 117,000 miles, annual use 3,000 miles and previous keepers six. These figures are not market-wide: check service history, condition and ownership, and weigh age-related costs against the Signum’s space and comfort.