The Vauxhall Signum stands out for its impressively spacious interior, exceptional rear passenger comfort and executive-style legroom.
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Overall rating 4/5
Running costs
Comfort
Reliability
Space Practicality
The Vauxhall Signum was designed for drivers who value space, comfort and practicality over badge appeal. Produced from 2003 to 2008, this executive hatchback stretches the Vauxhall Vectra formula, offering class-leading rear legroom and comfort. With flexible rear seats, a large boot, and ample cabin storage, it is especially useful for families or those covering long distances. Despite modest sales, it is praised for a smooth ride, plush interior, and strong value compared to rivals like the Renault Vel Satis and Saab 9-5 Estate. Its low used prices make it a hidden gem if you accept understated styling and Vectra roots.
Generous rear legroomFlexible interior and large bootWell-equipped even in base trim
Somewhat plain stylingCan be pricey to tax and insureParts can be harder to sourceThe Vauxhall Signum comes fitted with ABS, front and side airbags, ISOFIX points and traction control on many versions. Some trims also include alarm and cruise control. While its safety tech reflects the standards of its time, these essentials are enough to give confidence and peace of mind on the road.
Between 2003 and 2008, Vauxhall offered the Signum with a wide range of engines, including 1.8 and 2.2-litre petrols, a 2.0 turbo, and strong diesel choices like the 1.9 CDTi and 3.0 V6 CDTi. Manual and automatic gearboxes were available, so there’s a version to suit most needs.
Most Signums come generously equipped, with cruise control, air conditioning and electric front and rear windows as standard. Higher trims add sat nav, leather seats, and even TV. CD and CD Multichanger stereos are standard, though infotainment reflects early-2000s technology, so it may be worth considering upgrades.
Fuel economy varies by engine: the 1.8 petrol can return around 35 mpg, while the 1.9 CDTi diesel manages up to 40 mpg. If you do longer journeys or value running costs, the diesels are the efficient choice – but always check maintenance history for best real-world results.
Look for regular service history, especially on diesel models. Check for healthy electrics, wear on suspension components, and whether all tech still works. As with any used car, getting a thorough check through the AA Vehicle Inspection is wise – and can help you avoid any surprises.
Overall owner feedback is positive for reliability, especially if servicing is kept up to date. The 1.9 diesel engine is well regarded, though some models require careful maintenance for their technology. Parts availability can be a touch limited due to lower production numbers, but generally it’s a practical, dependable car for its age.
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