The VAUXHALL SIGNUM (2003-08) 5DR HATCHBACK 1.9 CDTI 150 ELEGANCE is a spacious five-door family hatchback with an upmarket feel. It occupies a niche between mainstream family cars and larger executive models, offering an alternative to estates and saloons. Its distinctive long shape gives rear passengers room, while the 150 diesel suits everyday driving and longer journeys. Mycarcheck.com usage data includes 26 look-ups across 13 distinct VINs: a snapshot, not a full market survey. The checked cars averaged £600 in private-sale valuation, 101,000 miles, 3,000 miles of annual use and 3.7 previous keepers. These are observed averages, not a price or condition guarantee. Compared with Mondeo and Vectra rivals, the Signum is less conventional, standing out for its roomy cabin and relaxed touring character. It suits families, commuters and drivers seeking diesel flexibility and rear-seat comfort beyond a typical hatchback. As an older niche car, check each example’s history and condition.