A DVLA crackdown has caught 1,233 unlicensed foreign drivers and led to a large number of vehicles being either clamped or seized.
Foreign-registered vehicles must have normal UK excise duty tax in place if they have driven in the UK for more than six months.
The DVLA said that its blitz on foreign vehicles will not be restricted to the nationwide week of action, and that enforcement is ongoing as part of normal operational activities.
A spokesman said: "We take the issues associated with overstaying unlicensed foreign vehicles very seriously.
"That is why there is a continuing scheme of education and enforcement in place to help tackle the problem, which enables keepers of such vehicles to fully understand their responsibilities and to comply with UK registration and licensing laws.
"Those who fail to comply risk having their vehicle clamped, impounded and potentially destroyed."
Copyright © PA Business 2008