At one stage, Whitehall officials seriously considered stripping Vauxhall of its classification as a UK car company, so high was the imported content of `British-built" Vauxhalls. 
Since then local sourcing of components has improved markedly, as has the proportion of Vauxhall-Opel's UK sales which <tag "515648">derive</> from its UK car plants as opposed to those on the Continent.   

