[quote user="Ron-sur-Marne"] Many other expats did not french register their cars, but kept them UK legal (myself included) - MoT, Road Tax, valid UK insurance (with long-term green card) - and never had problems. [/quote] ''A Green Card is not required by law to cross borders within the European Union and some other countries. This is because all EU countries and certain other countries comply with the first directive on motor insurance, which says that every insurance policy issued in the EU must provide the minimum insurance cover required by law in any other EU country. The countries that don't need a Green Card are: Andorra, Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovak Republic, Slovenia, Spain, Sweden, Switzerland '' From :- www.direct.gov.uk/en/Motoring/OwningAVehicle/Motorinsurance/DG_067624