§ Mrs. Lait
To ask the Secretary of State for Transport how many owners of untaxed foreign cars were traced and brought into the car tax regime in the last year for which figures are available; and what recent estimate he has made of the number of untaxed foreign owned cars in the United Kingdom. 
§ Mr. Jamieson
International agreements govern the use of motor vehicles in international traffic. The main principle is that a vehicle properly registered, taxed, insured and tested in its home country should not be subject to domestic laws of the host country during a temporary visit.
DVLA does not have information on the number of foreign owned cars registered in GB or those which are evading tax. Discussions are taking place with police and local authorities in an attempt to quantify the extent of the problem.