Vauxhall Signum (2003-2007)
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The Vauxhall Signum (2003-2008) was the Vectra's upmarket relative. Though mechanically closely related, the Signum came with a higher equipment specification, posher trim and a slightly different interior layout. It's a big car, but does it have anything else that sets it apart from its rivals? And how does it behave on the road? Read our full review to find out.
Which? testednew & used cars from Vauxhall
Vauxhall brand overview
Here's what we do know about the Vauxhall Signum (2003-2007)
Boot space
Combined mpg
Urban mpg
Extra Urban mpg
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